Section 01
The Email Signal Was Already Broken in 2023
Before we could understand why email performance deteriorated, we had to reckon with a more fundamental problem: the metrics we were using to judge performance were themselves unreliable. This is not unique to OBUSA — it is an industry-wide reckoning that accelerated dramatically between 2021 and 2025.
Apple Mail Privacy Protection and the Open Rate Fiction
In September 2021, Apple introduced Mail Privacy Protection (MPP), which pre-loads email content — including tracking pixels — on Apple devices regardless of whether a human actually opened the message. The immediate effect was artificial inflation of open rates across the entire email industry. By 2023, any ESP reporting open rates above roughly 25% was almost certainly capturing a significant share of machine-triggered opens alongside genuine human ones.
OBUSA’s Mailchimp dashboard showed a ~32% average open rate in 2023. On its surface, this looked like a reasonably healthy program. Under the hood, a substantial portion of those opens were Apple Mail proxies, not humans. The 2023 Advancement Communications Report captured this distorted reality: a 32% open rate sitting alongside a 0.35% click rate, against a nonprofit benchmark of 2.79%. Those two numbers cannot coexist in a healthy program. Open rate was a fiction; click rate was the honest signal, and it was pointing at a serious problem.
Industry Context
“Open rates, click-through rates, and even delivery metrics can be distorted by bot activity, security tools pre-clicking links, Apple Mail privacy protections, and corporate infrastructure scanning emails before a human sees them.” Treating ESP-reported metrics as imperfect signals — rather than authoritative measures of engagement — is now an industry-standard recommendation. Marketing automation systems that reward opens and clicks in lead scoring are particularly at risk of generating bad leads from machine behavior rather than genuine buyer intent.
Bot Traffic: Quantified
Mailchimp’s AI-powered bot/proxy analysis of the last 50 sends (Nov 2025–May 2026) made the scale of the problem concrete. Across the 21 Development-tagged campaigns in that window:
Bot Share of Opens — Development Email
77%
3,962 human opens vs. 12,922 bot/proxy opens across 21 Development campaigns
Bot Share of Clicks — Development Email
58%
672 human clicks vs. 911 bot/proxy clicks. Machine clicks exceeded human clicks in several individual sends.
Source: Mailchimp AI bot/proxy export, Nov 2025–May 2026. Mailchimp’s standard dashboard rates already exclude bot traffic before calculating percentages — these figures quantify the noise underneath reported metrics, not an adjustment to them.
Alumni sends were especially saturated — one Alumni Summit Fund Appeal showed 80% bot opens and 82% bot clicks, reflecting a high concentration of corporate email addresses and security-scanning infrastructure in that segment. The contrast with SYBUNT sends (lapsed donors), which were nearly bot-free, is significant and directly informs future segmentation strategy.
Important Distinction
Because Mailchimp’s dashboard rates already excluded bot traffic, the 0.35% click rate from the 2023 audit is a human-only figure. The bot analysis quantifies the noise underneath but does not change those reported rates. The problem is not that metrics were secretly higher — it is that engagement was genuinely low even after machines were filtered out.
Influence Over Inbox Placement: A Structural Limit of Shared Infrastructure
An important consequence of the shared IP model: in a Mailchimp shared pool environment, OBUSA’s ability to materially improve its own inbox placement through better content or stronger engagement practices was constrained. ISPs evaluated sends as part of a large shared pool — OBUSA’s individual open rates, complaint rates, and engagement quality had diminished marginal effect on its own placement outcomes. On dedicated IPs in Braze, that changes entirely. Every positive engagement signal — every open, every click, every non-complaint — compounds directly into OBUSA’s own sender reputation. The equity that good content and engaged audiences build is now equity we actually own.
Section 02
What Mailchimp’s Data Actually Showed
Once you look past inflated opens, the OBUSA Mailchimp program told a story about a large list with a very small engaged core — and a donor segment that was almost entirely dormant. The migration to Braze did not shrink the audience; it made the real size visible for the first time.
The Audience Funnel: 125K to ~13K
Mailchimp engagement export, 2025–26 review. “Truly engaged” = opened any campaign in last 20 sends.
No Clicks in 12 Months
66,342
82.8% of all subscribed contacts never clicked in a full year
Zero Opens in Last 50 Sends
66,918
83.5% of subscribed contacts showed no open behavior across 50 consecutive campaigns
Mailchimp “2-Star” (No Engagement)
96,136
From the 2023 audit: the single largest rating bucket — 76.5% of the full contact list
The Donor Picture Was Even Starker
The 2023 Advancement Communications Report captured the donor segment specifically. Of 7,876 subscribed donor contacts in Mailchimp at that time, approximately 98% were classified as rarely engaging — leaving roughly 158 consistently active donor contacts in the entire email program. Mass-blast communications to 80,000+ contacts were reaching a donor audience that was functionally dormant for the overwhelming majority of recipients.
2023 Donor Contacts — Subscribed
7,876
Total donor-tagged contacts in Mailchimp at time of 2023 audit
2023 Advancement Communications Report
Rarely Engaging Donor Contacts
~98%
Approximately 158 consistently active donors out of 7,876 subscribed
↓ ~7,718 effectively unreachable via email
Borrowed Infrastructure, Borrowed Results
OBUSA’s Mailchimp sends ran through a shared IP pool serving millions of other senders. This has a real benefit for new or casual senders: the pool carries established reputation with ISPs, providing inbox placement the sender hasn’t independently earned. OBUSA was borrowing goodwill it had not built — and as noted above, that structural arrangement also limited the ability to improve inbox placement through better sending practices. The simplicity that School-level staff experienced in Mailchimp came at the cost of visibility and ownership. There was nothing to carry that reputation forward when platforms changed.
OBSG: A Parallel Story, Now a Unified Asset
Outward Bound Services Group (OBSG) was, prior to January 2025, a separate OBUSA business unit focused exclusively on selling Open Enrollment (OE) courses. It maintained its own Mailchimp list — the OE List — entirely separate from OBUSA’s Development audience, with no shared visibility into contact overlap, engagement history, or cross-audience relationships.
OBSG’s OE List tells a near-identical engagement story. In 2024, across 64 campaigns and 53,514 total contacts, the list was performing well: 63.4% of contacts were engaged (33,933 contacts), average open rate of 14.2%, with peak open rates of 20–32% in Q2 2024. Then, beginning in Q4 2024, the same decline visible in OBUSA’s data appeared: December 2024 sends dropped to 4.9–5.8% open rates. By January 2025–February 2026 (the last 50 OE List campaigns — every one of them labeled “IP Warming”), 72% of contacts were completely dormant and only 1,113 remained highly engaged — a 78% drop from the 5,239 who were highly engaged just the year before.
The timing is not coincidental. The transition dynamics and shared IP warming challenges affecting OBUSA’s program during 2025 were operating across both programs simultaneously. They were separate accounts, separate lists, separate audiences — but the same underlying deliverability environment. When OBSG was formally integrated into OBUSA in January 2025, the most engaged OE List contacts began migrating to Braze. Today, 9,261 OBSG contacts are reachable in the OBSG Braze team, alongside OBUSA’s 11,700. Accounting for the 3,114 contacts who appear across both audiences, the total combined, deduplicated reachable Braze audience is 17,847 — already exceeding what OBUSA’s Mailchimp-era peak showed when viewed as a single list, and representing something genuinely new: a unified picture of two previously invisible-to-each-other audiences.
The Cross-Audience Opportunity
The OE List contains a meaningful population of parents and families who enrolled their children in Outward Bound Schools courses — natural donor cultivation prospects who were previously completely invisible to the Development team. Cross-audience visibility in Braze means a parent in the OBSG database who has never been contacted about giving can now be identified, segmented, and stewarded as a prospective donor — with knowledge of their program history informing the outreach. Contacts who were unengaged with OBSG’s OE content but actively engaged with OBUSA’s Development emails can now be recognized as engaged rather than dormant. This is the kind of insight that was structurally impossible with two separate Mailchimp accounts.
The Hitch: Evidence for Segmented Sending
The Hitch — OBUSA’s targeted development newsletter — provides a concrete case study in how a smaller, more curated audience performs against the mass-send baseline. Across 9 targeted sends from April 2025 through March 2026, The Hitch reached an audience that grew from ~4,437 to ~6,297 contacts — a 42% list growth over the period, reflecting genuine interest in this content format.
The reported open rates (5.2–8.4%) reflect the same industry-wide bot inflation. Between 63–75% of total opens across Hitch sends were bot/proxy generated, putting true human open rates at approximately 1.5–2.5% per send. Where The Hitch shows its value more clearly is on clicks. In sends unaffected by anomalous link-triggered bot scanning, human CTR ranged from 0.3% to 0.7% — consistently above the 0.10% baseline for typical mass sends. The two outlier campaigns (“Grateful for You” at 79% bot clicks and “The Hitch (3)” at 81%) likely reflect specific link structures that triggered aggressive security scanning rather than a problem with the audience.
Hitch CTR Range (non-anomaly)
0.7%
Best: Lilly Foundation send. Range: 0.3–0.7%
↑ 3–7× mass-send baseline
Audience Growth (Apr–Jan)
+42%
4,437 → 6,297 contacts over 9 sends
Bot Open Share (avg.)
70%
Consistent with Development email average — not unique to The Hitch
Delivery Rate
99.8%
Near-perfect across all 9 sends — healthy, well-maintained list
The Hitch isn’t evidence of a problem — it’s early evidence of the model. A small, curated audience receiving content designed for them outperforms mass sends on click efficiency, even at a fraction of the volume. This is the same principle that makes SYBUNT so compelling at scale.
The Deeper Signal: Relevance Outperforms Volume
The most significant performance data point from the entire Mailchimp era is not found in the newsletter or mass-send numbers. Three SYBUNT (Gave Some Year But Unfortunately Not This Year) sends in 2025, reaching 1,167 total contacts, produced a 2.31% donation link CTR — approximately 24x the typical mass-send rate of 0.10%. The SYBUNT audience was small, precisely defined, and nearly bot-free. This is the model: highly segmented, smaller sends to audiences that share meaningful customer attributes — in this case, prior giving history and recency — consistently outperform larger, less tailored communications. The principle holds whether the segment is defined by giving history, course enrollment timing, program type, school affiliation, or geographic connection.
SYBUNT Donation CTR (2025)
2.31%
Across 3 sends to 1,167 contacts; independently validated by partner strategy analysis
↑ ~24× typical mass-send rate
Hurricane Helene (Best Mass Send)
0.51%
81,754 sends; highest-ever mass CTR, noted as “far exceeding typical” in analysis
Typical Mass-Send Donation CTR
0.10%
Combined 2024–2025 baseline for donation-link-containing mass campaigns
Section 03
The Case for Braze: What the Migration Unlocked
The migration to Braze was a deliberate infrastructure upgrade, not primarily a response to a deliverability crisis. The deliverability challenges that followed were a known tradeoff of the transition — not evidence the move was wrong.
Why Dedicated IPs Change the Equation
Braze sends through two dedicated IP addresses assigned exclusively to OBUSA (137.22.238.90 and 137.22.248.236, via SparkPost as MTA sub-processor). Every send contributes to — and only to — OBUSA’s own sender reputation. There is no shared pool, no other senders’ behavior to absorb, no borrowed goodwill. The tradeoff is that dedicated IPs begin with zero established reputation: ISPs must observe sending volume, consistency, engagement rates, and complaint rates before assigning inbox placement. This warming period is standard for any move to dedicated infrastructure — not a platform flaw, not a migration error.
Almost No Automation: The Absence That Mattered
One of the starkest findings from the Mailchimp era is not just what the metrics showed, but what was entirely absent: nearly no automated communications, behavioral canvases, or structured stewardship sequences were deployed for donors or other audiences — even though Mailchimp offered this capability at a basic level. The program ran almost entirely on manually-scheduled campaign sends, with no triggered responses to donor behavior, no welcome sequences following a first gift, and no re-engagement automation for lapsed contacts. Every communication required an individual, manual decision to send. This left the entire relationship management burden on human bandwidth rather than on systems designed to carry it.
What Braze + Segment + Snowflake Makes Possible
Capability 01
Single, Deduplicated Profiles
A contact appearing across multiple School databases — both as a donor and a past participant — is now one unified profile with cross-School visibility. In Mailchimp, they were separate list entries with no connection between them.
Capability 02
Real-Time Segment Membership
SYBUNT, lapsed-donor, and recency-based segments can be defined once and maintained dynamically. Contacts enter and exit based on actual behavior — not manual list pulls performed before each send.
Capability 03
Cross-Channel Identity Resolution
Web behavior, form completions, application starts, and email engagement are now tied to the same profile. A donation-abandonment journey is technically feasible today. Previously there was no way to connect a site visit to a known email record.
Capability 04
Behavioral Automation at Scale
Canvas journeys support automated, time-and-behavior-triggered sequences. Donor Welcome, alumni re-engagement, and course-inquiry nurture flows — none of these were achievable in Mailchimp’s campaign model without significant manual coordination.
Performance Evidence, Even Mid-Recovery
Despite sending during an IP warming period — with an intentionally restricted audience, fewer total sends, and active Gmail inbox placement challenges — Braze’s click-through performance is already substantially stronger than Mailchimp’s historical baseline:
| Platform | Campaigns | Total Audience | Unique Clicks | Blended CTR |
| Mailchimp (12-month lookback) | 44 | 463,240 | 1,356 | 0.29% |
| Braze (12-month lookback) | 33 | 43,361 | 437 | 1.01% |
12-month Development email lookback, equivalent time period. Note: this CTR advantage is below the nonprofit industry benchmark and should be read as directional progress during a recovery period, not a final performance ceiling.
Braze CTR Advantage (Blended)
~3.4×
1.01% Braze vs. 0.29% Mailchimp on equivalent Development sends; consistent in head-to-head same-campaign comparisons
↑ Holds even during reputation recovery period
Spring Caregiver Appeal Head-to-Head
16×
Braze 0.64% vs. Mailchimp 0.04% CTR on identical content, same period, comparable audiences
The Gmail Split Test: Content Works — Reputation Is the Blocker
One of the most important diagnostics from the migration period is the Gmail-vs-non-Gmail split on the Spring Caregiver Appeal 2026. The same creative content, sent to two audience splits one day apart, produced dramatically different results — demonstrating clearly that this is a reputation and inbox placement problem, not a content quality problem. Non-Gmail contacts saw strong engagement; Gmail contacts, whose inbox placement was being filtered by reputation signals at the IP and domain level, received significantly less inbox delivery for that send. As Gmail reputation improves, the performance gap between the two populations will close, recovering reach to a significant portion of the donor audience currently unreachable.
Non-Gmail Recipients
0.64%
2,850 contacts · 46.2% open rate · 0.64% CTR. Strong performance confirms content quality is not the issue.
↑ Content works
Gmail Recipients (same content, next day)
Near-Zero
3,879 contacts · Very low open and click rates. Reputation-blocked, not content-rejected.
↓ Reputation barrier, not content barrier
Section 04
Where We Stand Today (June 2026)
The recovery is measurably progressing. We are in a deliberate, temporary restriction period — limiting sends to engaged contacts only — to protect reputation and rebuild Gmail trust. The audience is temporarily smaller than its Mailchimp peak, but more productive per contact than it has ever been.
Naming the Unusual: An Atypically Long Warming Period
It is worth acknowledging directly that OBUSA’s IP warming process has extended nearly two years — well beyond the 4–12 week timeline typically documented for an organization at this scale. The duration reflects a combination of compounding factors: cold-starting two IPs simultaneously during the transition; cross-contamination risk created by concurrent Mailchimp and Braze sends from the same root domain during the migration window; a pre-existing list with a high concentration of disengaged contacts that limited positive engagement signals during the critical early warming period; and the Gmail-specific reputation challenges that emerged and required extended remediation. These are recoverable conditions, and the trajectory is clearly improving. But the extended timeline underscores why the infrastructure changes being made now — clean subdomain, clear sender identity, engaged-only sending discipline — are not optional enhancements. They are the foundation that makes sustained improvement possible.
IP Reputation Progress
As of the most recent data reviewed (June 2026), both dedicated IPs have moved out of their worst reputation state. The primary IP (137.22.238.90) peaked at a “Bad” reputation state in mid-May 2026, then consistently held “Low” from late May through early June. The secondary IP (137.22.248.236) held “Low” throughout the same period without dropping to “Bad.”
Primary IP — May 2026 Low Point
Bad
137.22.238.90 — worst point of the recovery window, mid-May 2026
↓ Starting point for current recovery
Primary IP — June 2026 Rating
Low
Consistent “Low” from May 29 through most recent data. Stabilizing.
→ Targeting Medium
Secondary IP — Current Rating
Low
137.22.248.236 — never reached Bad; held Low throughout. Same Medium target.
→ Steady
Note: Google’s Postmaster Tools no longer uses the Bad/Low/Medium/High label system in its current interface, having moved to a revised scoring approach. The labels used here are proxies drawn from internal scoring data and serve as directional indicators of reputation health, not a precise standardized measure.
The Trigger to Watch
Reputation ratings moving from Low toward Medium equivalents is the target threshold for expanding the send list beyond the current engaged-only filter. As both IPs hold improved ratings for a sustained period, the engagement criteria will be relaxed in controlled stages, recovering reach to contacts currently excluded from sends.
Why Some Gmail Contacts Receive Emails While Others Don’t
A common and understandable point of confusion: two contacts in the same “engaged” segment receive the same send, and one gets it in their inbox while the other does not — even though both use Gmail. This is not random, and it is not a system error. Gmail’s filtering algorithm evaluates reputation at the IP and domain level, but it also factors in recipient-specific engagement history. A contact who has previously opened OBUSA emails, moved messages from the spam folder to inbox, or replied within their Gmail account carries a positive individual-level signal that can override broader sender reputation concerns. A contact who has never actively engaged with OBUSA emails at Gmail — even if they qualify as “engaged” based on activity at other mailbox providers or on desktop clients — may consistently land in the spam folder regardless of sender reputation score. Two contacts in the same segment, receiving the same send, can experience materially different inbox placement based entirely on their own Gmail interaction history with OBUSA’s messages. As reputation improves overall, the proportion of Gmail contacts receiving inbox-placed messages grows — but individual-level history remains a factor that no sender can fully control.
Audience Size: Reading the Numbers Correctly
There are two important audience comparisons to hold simultaneously. The first is the Development/donor pipeline comparison: OBUSA’s Braze-engaged audience of ~11,700 (donors, donor prospects, and alumni) versus the Mailchimp “truly engaged” peak of 13,217 from the OBUSA-only list. That 11,700 is 88.5% of the Mailchimp peak — a temporary gap driven primarily by Gmail-blocked contacts excluded during recovery. This is the right comparison for Development’s donor work specifically.
The second is the full organizational picture: combining OBUSA’s 11,700 with OBSG’s 9,261 reachable Braze contacts (and deducting the 3,114 who appear in both), the total deduplicated reachable audience across both Braze teams is 17,847. This already exceeds what any single Mailchimp list ever showed for OBUSA alone — and it represents a unified, cross-organizational view that was structurally impossible when OBUSA and OBSG were on separate Mailchimp accounts. The November 2026 milestone targets OBUSA-specific engaged contacts exceeding 13,217 for EOY Development fundraising, while the combined total positions OBUSA for the largest coordinated reach in the program’s history.
OBUSA Mailchimp Peak (Development Comparison)
13,217
OBUSA-only Mailchimp peak: contacts who opened ≥1 of last 20 campaigns. The donor pipeline comparison baseline.
Braze OBUSA Engaged Today
11,700
88.5% of OBUSA Mailchimp peak — temporarily reduced by Gmail exclusions. Target: exceed 13,217 by November 2026.
Braze OBSG Engaged
9,261
OE course alumni, parents, and participants — a new donor cultivation pipeline with no equivalent in either prior Mailchimp account
Combined Braze (Deduplicated)
17,847
11,700 OBUSA + 9,261 OBSG − 3,114 shared = 17,847. Already exceeds OBUSA’s single-list historical peak.
↑ Exceeds any prior single-platform metric
Effective Engagement Index
~3×
OBUSA alone: audience size × CTR improvement versus comparable Mailchimp cohort. More real donor action per send.
The Volume Drop Was Intentional
Q1 2026 send volume dropped sharply from the November–December pace (Nov: 10 sends, Dec: 17 sends → Jan: 1, Feb: 4, Mar: 2). This is worth surfacing proactively before it appears in revenue or engagement reporting as an unexplained gap. It reflects deliberate deliverability-recovery operations — fewer sends to a deliberately restricted list is the correct behavior during reputation recovery, not a strategy failure or a technology problem. The EOY 2025 Development calendar ran on schedule through Braze. The Q1 pause was a controlled operational choice.
Section 05
Infrastructure Roadmap: Domain Architecture
The current sending domain configuration is functional but not final. A sequenced series of changes will improve brand trust signals, create clean School-level differentiation, and establish an isolated sending environment for The Reset that protects OBUSA’s core deliverability as both programs scale.
Current State
Current Sending Domain Configuration
c.outwardbound.org
Marketing Sending — Authenticated
Active marketing email sending domain. Warm. All current IP reputation investment tied to this identity.
t.outwardbound.org
Transactional Sending — Authenticated
Transactional email sending domain (booking confirmations, operational notices). Inbox providers treat transactional sends differently — higher expected engagement, lower complaint tolerance.
A Note on Transactional vs. Marketing IP Health
One of the two existing dedicated IPs may be serving primarily as the transactional sending IP. This distinction matters for reputation management: inbox providers evaluate transactional email more favorably because recipients actively request and expect these messages. The resulting lower complaint rates and more consistent engagement typically produce stronger reputation scores on that IP. If one IP carries primarily transactional reputation, its health is more stable and less reflective of the deliverability challenges in the marketing send stream. As we restructure the domain configuration, this split also informs whether to carry existing IP assignments forward or evaluate a fresh IP for the renamed marketing subdomain.
Step 1: Subdomain Rename — Trust Signal and Brand Clarity
The current prefixes c. (marketing sending) and t. (transactional sending) are functional but mechanical-looking. Recipients who inspect email headers see these low-legibility strings, which carry no brand meaning and can reduce trust signals — particularly for donor audiences. The planned rename introduces descriptive subdomain names that reflect purpose:
Planned Subdomain Rename
c.outwardbound.org
→
mail.outwardbound.org
Planned — Marketing Sends
t.outwardbound.org
→
update.outwardbound.org
Planned — Transactional Sends
Sequencing and IP Strategy
IP reputation carries across a domain rename — the warm-up investment made on the current IPs remains intact regardless of what the sending subdomain is called. Domain reputation, however, does not carry across renames. The reputation history built under c.outwardbound.org does not transfer to mail.outwardbound.org — the rename starts a fresh domain reputation history. This creates an option: assign a fresh, unwarmed IP to mail.outwardbound.org and begin a clean reputation build under the new identity, free of any residual reputation friction from the current recovery period. This option is under evaluation and should be decided before the rename is executed. In either case, the rename should happen while reputation is stable enough to support a domain reset — not during an active crisis. Stabilize current reputation first, then rename.
Step 2: Per-School Subdomains
Each regional Outward Bound School will eventually send from its own subdomain, creating clear differentiation between national OBUSA communications and School-specific messages. This serves both deliverability (School sends can warm independently without affecting OBUSA’s national sender identity) and subscriber trust (recipients can identify message origin at a glance).
School Subdomain Pattern — Phased Rollout
cobs.outwardbound.org
Phase 2 — First School
Colorado Outward Bound School — dedicated sending subdomain; warm-up sequence required before use
[school].outwardbound.org
Subsequent Schools
All nine Schools migrated individually, one at a time, each with their own warming sequence
School Subdomain Governance: Where Autonomy Has Limits
Once Schools have their own sending subdomains, their sending practices directly affect their subdomain’s domain reputation — and through the shared IP infrastructure, potentially the broader sending environment for all Schools and OBUSA. A School sending to large disengaged contact lists, using an inconsistent or irregular cadence, or generating elevated complaint rates can degrade domain reputation for that School’s subdomain specifically. Because subdomains carry their own domain reputation separate from the IP level, the first-order impact is on that School’s own inbox placement — but persistent IP-level damage can ripple across all senders on shared infrastructure.
The governance model must be explicit: Schools have full autonomy over content, sender name, School-specific tone, and the audiences they build from their own enrolled and locally-engaged communities — populations where contacts have recently signed up or actively engaged with School-specific communications. This represents the lowest-risk use of a School subdomain. Where minimum standards must apply to protect shared infrastructure: engagement-gating requirements on sends (no sending to contacts with no School engagement history in 12+ months), complaint rate monitoring thresholds, and minimum warming cadences for any new subdomain going live. These are not creative restrictions — they are the infrastructure rules that protect every School’s sending health, including their own.
Step 3: The Reset — Separated Domain Architecture
The Reset has a meaningfully different audience profile, content category, and subscriber relationship than core OBUSA Development communications. Its list is growing, its communications span transactional (confirmed pledge, day-of event reminder) and marketing (re-engagement, digital wellness content, partner co-promotion), and its subscribers may have no prior relationship with Outward Bound as an organization. Routing Reset communications through a dedicated subdomain achieves several strategic goals:
Goal 01
Reputation Isolation
Reset subscriber behavior — which may include higher unsubscribe rates as the list scales into digital wellness and lifestyle categories — cannot affect OBUSA’s core Development sender reputation. A rough patch in Reset deliverability leaves OBUSA donor email insulated.
Goal 02
Clear Customer Journey
A Reset subscriber has a distinct path: Reset interest → program participant → potential OBUSA supporter. Separate sending domains allow that journey to be managed intentionally, with a defined threshold for when a Reset contact enters the broader OBUSA communication ecosystem.
Goal 03
Digital Wellness Partner Value
The Reset’s co-marketing relationships with digital wellness and outdoor partners are cleaner when Reset communications carry their own identity. A partner co-send from a Reset-specific domain is clearly scoped to the Reset context, not the broader Outward Bound Development program.
Goal 04
Metrics Clarity
Reset engagement data stays clean and separate. CTR, complaint rates, list growth, and unsubscribes for The Reset program don’t blend into OBUSA Development reporting, making both programs easier to evaluate and optimize independently.
Section 06
Getting Back to — and Past — 13,217 Engaged
The current engaged audience of ~11,700 is a temporary floor, not a ceiling. Improving Gmail inbox placement, recovering reach to currently-excluded contacts, and active list growth through enrollment, donation, and Reset conversion touchpoints will drive the audience back up — and past the Mailchimp peak by November 2026.
Why the Gap Will Close
The ~11% gap between today’s 11,700 and the Mailchimp peak of 13,217 is primarily driven by Gmail-blocked contacts who are excluded from the engagement count until inbox placement improves, and by the conservatively-set engagement criteria appropriate for the recovery period. As Gmail reputation moves toward Medium equivalents, these contacts become reachable again and can begin accumulating active Braze engagement history. The controlled expansion approach — introducing excluded contacts in staged increments, monitored for complaint rates and inbox placement at each threshold before opening further — provides a responsible mechanism for accelerating this without risking a reputation setback.
Working with Massive Rocket on Segmentation Infrastructure
A parallel workstream with Megan is mapping additional segmentation attributes from Salesforce into Braze — aligned with the specific fields needed to build the audience segments that will power personalized Development communications. This includes both the technical field mapping and a documented SOP defining how new segmentation needs will be evaluated, requested, and implemented going forward. The goal is to ensure the team can build the segments it needs to drive audience relevance and donor trust without technical bottlenecks on each new campaign request.
The Content Consistency Baseline
A structural weakness in the Development email program surfaced clearly by the 12-month lookback data (covering 2024–2025 sends): stewardship-oriented sends represented approximately 4% of total Development email volume (or roughly 18% when the single annual Impact Report is included). The remaining 80%+ of what OBUSA donors received was an appeal, event announcement, or operational notice. This data comes from the 2024–2025 campaign history, not the 2023 audit — so it represents the most current content mix available and shows the pattern has held consistently across multiple years.
This matters for deliverability as well as relationship quality. ISPs reward consistent, expected communication cadences. A subscriber who receives mostly solicitations interspersed with long silences is more likely to stop opening, degrading the engagement signals that inbox algorithms use to route future messages. A regular stewardship cadence — even short, value-first touchpoints between appeals — improves the engagement baseline that makes appeal emails more likely to be delivered and read.
Current Stewardship Share of Dev Volume
~4%
Excluding annual Impact Report; based on 2024–2025 Development campaign history. The pattern has been consistent across multiple years.
↓ Well below a healthy content mix
Target Stewardship Mix
20%+
Not a fixed benchmark — but the gap between current and needed is large enough that material movement is warranted immediately, starting with 2–3 stewardship touchpoints per month.
↑ Improves engagement baseline for appeal deliverability
Section 07
Content Strategy: Value First, Zero-Click Built In
The shift from treating opens and clicks as primary success metrics requires a parallel shift in how we create, deploy, and reuse content. The goal is not fewer sends — it is more relevant sends with more value delivered per message, in formats that generate genuine engagement signals even when no trackable click occurs.
Engagement Signals Beyond Email — Channels Available Now
One of the most important differences between the Mailchimp and Braze eras is not just how email performs, but how many ways engagement can now be tracked, attributed, and acted on. Because all channels flow through the same Braze profile, every interaction — regardless of channel — contributes to our understanding of when and how to reach a contact, and when re-engagement sequences should activate.
Email
Primary Channel — Active
Opens (directional), clicks (primary), dwell time signals, forward behavior, spam/not-spam actions. Bot-aware when properly analyzed. The foundation of all engagement scoring today.
SMS / RCS
Available in Braze — Near-Term
Reply rate, link tap, opt-out signals. SMS/RCS engagement is high-signal by nature: contacts who receive a text have explicitly consented and expect value. Strong re-engagement channel for lapsed contacts who have stopped opening email.
In-App Messages
Available in Braze — Near-Term
Impression, tap, dismiss signals from contacts using OBUSA’s web properties. Contextual by definition — delivered when a known contact is actively on the site. Strong signal for triggering follow-up communications.
Web SDK + Content Cards
Available in Braze — Future
Page visits, time on page, form interactions, scroll depth from known contacts. Once the Braze SDK is the sole tracking layer, these web signals feed directly into Braze contact profiles — enabling behavioral triggers based on site activity, not just email opens.
Zero-Click Content: What It Means and Why It Matters
Zero-click content delivers meaningful value within the email itself — no link required for the reader to receive what has been offered. Complete impact stories, data snapshots, student quotes, field updates, and program outcome summaries are self-contained. A reader can share, forward, screenshot, or recall the content later without ever clicking a link. The value is delivered on open, not conditional on action.
This matters for two interconnected reasons. First, a growing share of genuine engagement happens without trackable clicks: forwarding to a colleague, saving a screenshot, searching for an organization later after reading about it in an email. Zero-click content reaches people where they actually consume information. Second — and more mechanically important for deliverability — content people genuinely want to read produces lower complaint rates, higher read-time signals, and more consistent engagement, all of which inbox providers use to route future sends favorably. A zero-click email that no one clicks but many people read and keep is building sender reputation. A click-dependent email that generates mediocre engagement is not.
Industry Context
“People may read an email, forward it, screenshot it, search for something later, or have AI tools scan content without clicking. The goal is to build mental availability so that when someone is ready to donate, enroll, or engage, they think of your brand first.” For OBUSA: stewardship builds mental availability; appeals convert it. One cannot work at scale without the other, and zero-click content is how stewardship scales without requiring a content team to produce net-new long-form work for every send.
How Zero-Click Engagement Shows Up in Our Data
Setting benchmarks for zero-click content requires different metrics than click-dependent sends. For a purely value-delivery email — an impact story, a field dispatch, a donor thank-you — the appropriate measures are: human open rate (directional signal of subject line and sender trust quality), spam complaint rate (the single most important reputation signal), unsubscribe rate (audience relevance signal), and downstream behavior in the following 7–14 days (did contacts who received a stewardship email convert at higher rates on the next appeal?). A stewardship message generating a 3–4% human open rate, near-zero spam complaints, and measurably improved conversion on a subsequent appeal is performing well — even if its CTR is 0%. Learning to read that story in the data is part of the transition from a click-dependent program to a relationship-driven one.
Content Categories: Expanding the Mix
Zero-click value content for OBUSA’s Development program includes: short participant impact stories complete within the email body; program outcome and data snapshots; seasonal field updates from instructors; staff and crew profiles; partnership profiles and announcements from organizational relationships; CEO and leadership thought leadership pieces; data and impact storytelling delivered as visual graphics within the email; and “what your gift made possible” single-story formats. These send well, generate genuine engagement signal, and prime recipients for appeals — all without asking for anything. The newsletter format remains a valuable flagship vehicle for organizing this content, but it becomes one format among several rather than the sole vehicle carrying all messaging weight. Adding shorter, single-topic sends between newsletter issues flattens the spike-and-silence pattern in send volume that currently characterizes the Development calendar, and gives inbox providers the consistency signal they reward.
Segmentation: Moving Past the Blast
The clearest evidence that targeted sends outperform mass blasts is already in OBUSA’s own data. SYBUNT performed 24× better than a typical mass send. The Hitch newsletter, at ~4,300–6,300 contacts, consistently outperformed mass-send click rates. These wins have a common explanation: smaller, more curated audiences receiving content designed specifically for them. First-party attributes available today — School affiliation, giving history, program participation, geographic region, course year — can be used to assemble audiences that are more relevant per send. The discipline required is not technical; it is the willingness to send smaller, better-targeted lists rather than defaulting to the largest available audience.
Frequency and Relevance Scale Together
Industry research and the behavior of OBUSA’s own best-performing segments consistently support the same principle: frequency and relevance are not in tension — they are proportional. Google’s Bulk Sender Guidelines (2024) make the underlying mechanism explicit: spam complaint rates are the dominant reputation signal for inbox placement. A high-frequency program that generates low complaint rates because recipients genuinely want the content will out-deliver a low-frequency program with mediocre engagement at the same volume. The content mix is the variable, not the frequency ceiling. Sending more relevant content more often is the path to better deliverability, not a risk to it.
Evergreen Content: Getting More Life from What Already Works
Not every stewardship touchpoint requires original content creation. Program outcome data from previous years, participant testimonials from past courses, handwritten student letters (unfiltered, scanned, delivered directly in the email body), instructor field dispatches from past seasons — all of these are high-value content pieces that can be assembled, refreshed with current context, and sent to audiences who haven’t encountered them before. A donor who first gave in 2022 hasn’t seen course outcome data from 2019; it may be exactly what builds their confidence in giving again now. The planned quote book — an anthology of participant reflections available as a light purchasable ask — adds another evergreen touchpoint: a featured quote can run in email with a gentle link to the book, generating both stewardship value and a low-friction giving opportunity for donors who want to engage without a full donation ask.
Braze’s Canvas architecture is well-suited to evergreen deployment: content pieces can be built into a Canvas library and delivered conditionally based on lifecycle stage. A new donor gets the Donor Welcome canvas with evergreen impact content. A lapsed donor gets a re-engagement canvas with different evergreen content framed around renewal. Create once; deliver contextually over time.
Section 08
Building the Multi-Channel Foundation
Email is one channel in a broader communication ecosystem. Braze’s platform capabilities — and OBUSA’s growing first-party data infrastructure through Segment and Snowflake — create the conditions for a coordinated multi-channel approach that strengthens email engagement rather than competing with it.
Channels Available in Braze
The current Braze implementation is email-focused, but the platform natively supports SMS, RCS, in-app messaging, web push, and content cards — all within the same contact profile, the same Canvas logic, and the same measurement framework. A donor who doesn’t open an email acknowledgment after a major gift might respond to an SMS thank-you. A first-time applicant on the OBUSA website might engage with a personalized in-app prompt to complete their application. These are not separate platform implementations — they are Canvas steps that incorporate the appropriate channel at the right lifecycle moment, decided by contact behavior and preference data already in the system.
Paid Media as an Engagement Multiplier
First-party donor data — already available in Segment and Snowflake — can be used to build custom audiences for retargeted paid media on Meta and Google. This creates a reinforcing loop: OBUSA delivers messaging to known donors on the platforms where they spend time outside their inbox, increasing brand recall and mental availability. When a subsequent email arrives, the recipient is more likely to recognize, open, and act on it. That engagement signal returns to the Braze profile and strengthens qualification criteria for future sends. Contacts who are currently excluded from email sends due to Gmail reputation challenges can still be reached through paid retargeting — keeping the relationship warm while inbox placement recovers.
On-Site Personalization
Known donors visiting outwardbound.org can eventually be served personalized on-site experiences using Braze’s web channel capabilities combined with Segment’s identity resolution. A donor arriving from an email link sees a landing experience calibrated to their giving history. A lapsed donor arriving organically can be served a re-engagement prompt. This is not an immediate implementation priority — it requires Segment’s web SDK to be the sole tracking layer, not running alongside GTM simultaneously. But the data to power it already exists in the Segment CDP. This is the logical next extension of the infrastructure already in place.
The Data Feedback Loop
The strategic value of multi-channel coordination is not just that it reaches donors in more places. It is that every interaction — email open, website session, form completion, paid ad engagement, SMS reply — comes back into the same Segment profile. Over time, this produces a progressively richer behavioral picture of each contact, enabling more precise segmentation, better timing, and higher-relevance content — which produces stronger engagement signals — which improves deliverability — which increases reach. Each cycle compounds. The infrastructure investment made now is what makes that compounding possible.
Section 09
Fall 2026 and Into 2027
The next six months are the most consequential in the program’s transition. The work done between now and end-of-year fundraising determines whether OBUSA enters 2027 with mature, automated, high-reach infrastructure — or carries current limitations into another fundraising cycle.
Phase Roadmap: All Priority Journeys Before Year-End
Now → September 2026 · Phase 1
Deliverability Stabilization & P0 Foundation Journeys
Reputation recovery, domain infrastructure, and the first tier of automated journeys. P0 journeys are the enrollment and conversion pipeline.
- Gmail reputation: Low → targeting Medium (the send-list expansion trigger)
- Subdomain rename:
c. → mail.outwardbound.org / t. → update.outwardbound.org
- Fresh IP evaluation for
mail.outwardbound.org
- Donor Welcome & Stewardship Canvas — P0, highest Development priority
- Payment & Enrollment Retention, Lead Nurture, Application to Enrollment, Course Readiness journeys
- Engaged-only filter relaxed in controlled stages as reputation improves
- Controlled micro-send exception: for a specific, time-sensitive key segment not yet meeting the engagement threshold, up to ~200 contacts can be reached in batches of approximately 50 per day spread across four days — provided the content is unique and purpose-built for that audience, not a workaround for general appeals. Content must be tailored; cadence must be spread; this is a deliberate exception, not a routine workaround
October → December 2026 · Phase 2
Lifecycle Expansion, EOY Fundraising & School Migration Begins
P1 and P2 journeys go live. EOY fundraising deploys against the largest qualified, inbox-confirmed audience in the Braze era. First School subdomain migration begins.
- Alumni Onboarding, Parent/Guardian Engagement, Parent-to-Donor Conversion Canvases
- Financial Aid & Scholarship, Donation Abandon Nurture journeys
- P2: Course Anniversary, Alumni Win-Back, Referral & Family Legacy, Ad Hoc Event Follow-Up, School Awareness
- EOY Development appeals running alongside active automated Donor Welcome and stewardship sequences — first time this has been possible
- First School subdomain goes live (e.g.,
cobs.outwardbound.org) with warming sequence
- Engaged audience target: exceeds 13,217 (Mailchimp peak) by November — positioned for the strongest EOY reach in the program’s history
What Success Looks Like by End of 2026
Milestone 01
Engaged Audience Exceeds Mailchimp Peak
Braze OBUSA engaged list exceeds 13,217 by November 2026 — the most qualified, inbox-confirmed donor-pipeline audience in the program’s history, going into the highest-revenue month of the year.
Milestone 02
Gmail Inbox Placement Meaningfully Improved
Both IPs holding Medium-equivalent reputation ratings by September. Gmail-specific deliverability gap substantially narrowed versus the Spring 2026 diagnostic, recovering reach to the significant portion of the donor list at Gmail.
Milestone 03
Donor Welcome & Stewardship Canvas Live
Active in Braze before the EOY campaign window opens. First-gift retention and donor re-engagement operating as automated behavioral sequences, not manual campaign-only touchpoints.
Milestone 04
Content Mix Meaningfully Shifted
Stewardship-to-appeal ratio improved from the current ~4%. Minimum 2–3 non-appeal stewardship touchpoints per month to engaged donor segments, including zero-click value content and evergreen pieces.
Milestone 05
Braze CTR Holds Through Audience Expansion
Blended Braze CTR maintained at or above 1.01% as the send audience expands. CTR maintenance at growing volume is the signal that segmentation and content improvements are working.
Milestone 06
School Migration Underway
At least one School subdomain live with its own warming sequence and sending identity before year-end. Governance model documented and active for School-level sending standards.
Operational Transparency and Reporting
Three standing initiatives are in place to ensure leadership-level visibility into program health and project progress across the organization:
Weekly Braze Development Performance Reports — filtered to Development-tagged communications and shared with the CDO and development team. These reports provide ongoing data on send volume, deliverable counts, engagement rates, and complaint signals, replacing the need to infer program health from anecdotal reports or one-off requests.
Bi-Weekly Massive Rocket Progress Summaries — synthesized from standing weekly calls and capturing completed activity, active work, upcoming milestones, and any risks or blockers. Shared in written form to support both leadership transparency and project documentation.
Expanded Weekly Meeting Participation — Megan (data and segmentation infrastructure) and Vito (IT and DNS) now participate in the standing weekly meeting, providing real-time access to updates across the data, deliverability, and infrastructure workstreams simultaneously. This eliminates the information latency that has historically required separate follow-up conversations across teams.
The Longer Horizon: 2026 Maturity, 2027 Expansion
By end of 2026, the goal is a program that looks structurally different from 2023: dedicated, warmed sending infrastructure across national and School-level identities; an engaged audience that exceeds the Mailchimp-era peak, built on real engagement rather than borrowed infrastructure; automated lifecycle journeys handling donor welcome, re-engagement, alumni conversion, and lapsed-donor recovery; and a content mix where value delivery is the norm, not the exception.
2027 is where the program grows into what the infrastructure enables. Deeper personalization using the first-party data accumulating in Segment and Snowflake. Additional channels — SMS, RCS, in-app — integrated into active Canvas journeys. More automation layers handling the lifecycle moments that currently require manual campaign decisions. On-site personalization for known donors. An engaged audience and content program mature enough to approach and then exceed industry benchmarks for nonprofit email performance. The investment being made now is the foundation. 2027 is where it compounds.