CAPTURECAPTURE Team
Email Warm-up & Migration (Operator Guide)

Per-Club Runbook

This page is the single operational record for one club's migration. Copy it, rename it for the club, fill every placeholder before the pre-launch checklist begins, and keep it updated throughout the ramp. Archive it with the completed daily log once the ramp-complete sign-off is in place.

The interactive builder below generates a pre-filled checklist from the club's key facts. Fill it first, then work through the master checklist in order.

Per-Club Runbook Builder
Fill in the club details below to generate a fully populated email ramp runbook.
Club Details
Derived Config Preview
Sending subdomain
mail.highgategc.co.uk
From address
info@mail.highgategc.co.uk
Tracking CNAME
link.highgategc.co.uk
Active base (~70%)
490 contacts
Day-1 Tier A volume
74 contacts (~15%)
Default (7–14 day gated) track: The standard track. Clean opt-in evidence and usable engagement history. Starts at ~15% of the active base on Day 1 (~105 for a 700-member club) and advances stage by stage on metric gates — spam <0.10%, hard bounce <0.50%, auth ~100%, Postmaster spam-rate Pass — never on open rate. Completes in 7–14 days. Advance on metrics, not the calendar. Open rate is never a gate (Apple MPP pre-fetch; Gmail retired its reputation dashboard 30 Sep 2025).
Capture • Per-Club Email Ramp Runbook • Capture Docs

1. Club Facts Block

Fill every field before advancing to the checklist. Blank fields are blocking items.

FieldValue
Club name[Club Name]
Club slug (kebab-case)[club-name-gc]
Root domain[clubdomain.co.uk]
Sending subdomainmail.[clubdomain.co.uk]
From addressinfo@mail.[clubdomain.co.uk]
From name[e.g. Highgate Golf Club]
Reply-to address[monitored human inbox — e.g. office@clubdomain.co.uk]
Custom tracking CNAMElink.[clubdomain.co.uk]
SPF record[paste final SPF TXT value]
DKIM selector + key[selector]._domainkey.[domain] — 2048-bit
DMARC policy at launchp=none; rua=mailto:[dmarc-reports@clubdomain.co.uk]
MX record(s) for subdomain[paste values — needed to receive replies and mailto: unsubscribe requests]
PTR / reverse DNS[confirmed by LC Email / Mailgun]
Google Postmaster — root domain- [ ] Verified
Google Postmaster — sending subdomain- [ ] Verified
Microsoft SNDS / JMRP- [ ] Registered (required if Outlook share > 15%)
Total raw list export (IG)[n] addresses
Suppressed at hygiene (hard bounce, dupe, malformed)[n] removed
Role-based addresses reviewed[n] checked — [n] kept (verified, opted-in individuals); [n] suppressed
Generic role addresses suppressed (info@, admin@, office@)[n] suppressed from marketing warm-up
Unsubscribed / opt-out from IG[n] suppressed
Mailable base size (post-hygiene total)[n] addresses
Tier A — clicked, replied, booked, purchased in last 30 days[n] addresses
Tier B — engaged in last 31–60 days[n] addresses
Tier C — engaged in last 61–90 days[n] addresses
Tier D — no engagement data; active membership[n] addresses — 30/60-day fallback only
Tier E — 90+ days no engagement, prior bounce / complaint, unclear permission[n] addresses — suppressed permanently
Estimated Gmail %[n]%
Estimated Outlook / Microsoft %[n]%
Estimated Apple / iCloud %[n]%
Estimated Yahoo / other %[n]%
Consent basis confirmed[e.g. PECR soft opt-in — members, similar products/services; or explicit consent; or — see compliance sign-off]
Soft opt-in basis documented- [ ] Confirmed by [name] on [date] — see Compliance
Ramp track chosen- [ ] Default 7–14 day engagement-gated (clean data, good consent evidence) — [ ] 30-day fallback (mixed data / patchy engagement history) — [ ] 60-day fallback (stale data, limited consent evidence, bounce > 0.5% on first test)
Ramp track approved by[Name, date]
Planned Step 0 IG broadcast date[DD Month YYYY]
Planned ramp start date (Day 1 GHL Trust Bridge)[DD Month YYYY]
Planned ramp end date (full volume)[DD Month YYYY]
Final IG send date[DD Month YYYY]
One-off transition SMS scheduled date[DD Month YYYY — or N/A]
Named client decision-maker[Name, role, email, mobile]
Albatross same-day pause owner[Name — person authorised to pause sends immediately, no approval required]
GHL sub-account ID[ID]
GHL drip rate at launch[e.g. 10–20 emails/hour — see Ramp Schedule for stage-by-stage targets]

2. Master Pre-Launch Checklist

Work through every phase in order. Do not advance to the next phase until every box in the current phase is checked. If a blocking issue is found, log it in the daily log (Section 3) and resolve before continuing.

Phase 0 — Compliance Sign-Off

Full guidance: Compliance — UK GDPR & PECR

The club is the data controller. Albatross / Capture is the processor. The compliance burden sits with the club; Albatross documents and supports.

  • Consent basis for every segment documented and reviewed — PECR soft opt-in, explicit consent, or other legal basis; do not rely on charity-basis rules unless the club is a registered charity; do not assume legitimate interests alone is sufficient for direct marketing
  • GDPR data-sharing addendum / DPA between club and Albatross / Capture signed
  • Suppression list built before any import: unsubscribes, opt-outs, and known complaints from IG carried across to GHL suppression list first, before the full contact import
  • One-click unsubscribe (RFC 8058) confirmed active in GHL LC Email account settings
  • PECR opt-out mechanism present and functional in every planned email template
  • Role-based address review complete: generic addresses (info@, admin@, office@) suppressed from the marketing warm-up; named-role addresses (captain@, secretary@, manager@) individually verified as real, opted-in individuals and documented
  • Client decision-maker has reviewed and signed the compliance section
  • Compliance sign-off date recorded: [DD Month YYYY]

Phase 1 — Domain, DNS & Authentication

Full guidance: Operator Runbook

Authentication is the true gate — not the volume schedule. Nothing proceeds until all records are live and verified.

  • Root-domain pre-flight passed: root domain checked against major blocklists; SPF and DMARC records confirmed present on the root domain
  • Sending subdomain created in LC Email settings: mail.[clubdomain.co.uk]
  • Custom tracking CNAME published: link.[clubdomain.co.uk] → LC Email / Mailgun endpoint
  • SPF TXT record live and tested (dig TXT mail.[clubdomain.co.uk] returns correct record)
  • DKIM DNS record live and tested — 2048-bit key; selector verified against LC Email / Mailgun
  • DMARC TXT record live: p=none; rua=mailto:[reporting address] — reporting inbox active and monitored
  • MX record for sending subdomain published (needed to receive replies and mailto: unsubscribe requests — RFC 8058 one-click unsubscribe itself works via HTTPS POST)
  • PTR / reverse DNS confirmed with Mailgun support
  • TLS confirmed — no plain-text fallback
  • All records verified with MXToolbox or equivalent; screenshots saved
  • Authentication alignment confirmed: From domain = DKIM signing domain = SPF-authorised domain (exact alignment)
  • Google Postmaster Tools — root domain [clubdomain.co.uk] verified and data collection started
  • Google Postmaster Tools — sending subdomain mail.[clubdomain.co.uk] verified and data collection started
  • Microsoft SNDS / JMRP registered: [date or N/A]

Phase 2 — Data Export, Hygiene & Segmentation

Full guidance: Data Prep & Segmentation

Suppress chronically unengaged and likely-hard-bounce contacts before the first send. Import the suppression list into GHL before the full contact import.

  • Full member list exported from Intelligent Golf — CSV with email, first name, last name, membership type, last-active date
  • Deduplication run; duplicate addresses removed
  • Malformed / unparseable addresses removed
  • Hard-bounce history exported from IG and loaded into GHL suppression list before contact import
  • Pre-existing unsubscribes / opt-outs from IG loaded into GHL suppression list before contact import
  • Role-based address review complete (cross-reference with Phase 0)
  • GHL LC Email built-in email validation run on full list; results logged in club facts block above
  • List segmented into Tiers A–E using clicks, replies, bookings, and purchases from IG — not raw opens (Apple MPP inflates opens by ~40–50%; opens are not a reliable engagement signal)
  • Tier E contacts (90+ days no engagement, prior bounce / complaint, unclear permission) suppressed permanently — never included in warm-up
  • Segments imported into GHL with correct tags / Smart Lists
  • Mailable base size, tier breakdown, and provider split documented in club facts block above
  • Domain-family analysis run on cleaned CSV; actual provider split recorded
  • Ramp track confirmed against list quality; decision recorded in club facts block

Phase 3 — Template Approval

Full guidance: Email Templates

The Trust Bridge is the first email from the new subdomain. Format matters as much as copy.

  • Trust Bridge email built in GHL — lightly branded HTML (small logo with alt text, system fonts, single column, mostly plain text, one link maximum, multipart plain-text alternative included)
  • From name and From address match the club's known identity — members must recognise the sender
  • Reply-to set to a monitored human inbox; reply is the primary CTA
  • LC Email reply routing verified → Conversations: inbound replies land in the GHL Conversations inbox; confirm no setting forwards inbound replies to an external address (if forwarding is set, managers will reply from Outlook and the thread leaves the subdomain identity)
  • Reply owner named with a same-day reply SLA: [Name] — replies must go out from Conversations so they send from the subdomain address
  • Add-to-contacts phrasing present as a secondary nudge — framed as optional, not as a spam-prevention guarantee
  • All GHL merge fields inside the template are correct: {{contact.first_name}}, {{location.name}} etc. — test with a real contact record before sending
  • Unsubscribe link present and functional in every template
  • One-click unsubscribe header (RFC 8058) confirmed active at account level
  • No URL shorteners, no attachments, no multiple images in the Trust Bridge or Weeks 1–2 sends
  • 2–4 follow-up simple club-update templates ready for the ramp weeks after the Trust Bridge
  • Full glossy HTML newsletter format deferred until Weeks 3–4 minimum — the Trust Bridge's job is replies and reputation, not design showcase
  • Templates reviewed and approved by client decision-maker
  • Template approval date recorded: [DD Month YYYY]

Phase 4 — Seed-Panel QA

Full guidance: Seed Panel (Diagnostic)

The seed panel is a placement diagnostic and a light one-time nudge on the first 1–3 sends only. It is real and marginal — not a reputation engine.

  • Seed panel inboxes confirmed: James's real, years-old Gmail, Outlook, iCloud, and Yahoo addresses — no newly created accounts, no fake farms, no automated tools
  • Test send dispatched to seed panel — stagger sends over 2–4 hours to mimic natural behaviour; do not batch simultaneously
  • Each seed-panel inbox checked manually within 24 hours:
    • Gmail — inbox placement confirmed; authentication headers verified (SPF pass, DKIM pass, DMARC pass)
    • Outlook — inbox placement confirmed
    • iCloud / Apple Mail — inbox placement confirmed
    • Yahoo — inbox placement confirmed
  • Actions taken only where email genuinely landed in spam — mark Not Spam, add sender to contacts; do not manufacture signals in the primary inbox
  • Actions on seed inboxes varied naturally and staggered: some open only, some reply, some add to contacts — consistent with how these inboxes are normally used
  • Tracking pixel and click links resolve correctly
  • Unsubscribe link tested and confirmed working
  • Any issues logged and resolved before ramp launch
  • Seed-panel actions confined to first 1–3 sends only — no ongoing cadence (dormant seed inboxes can trigger a dead-list penalty; AI warming-pattern detection exists)
  • Seed-panel QA pass date recorded: [DD Month YYYY]

Phase 5 — Step 0: Final IG Announcement & One-Off Transition SMS

Full guidance: Step 0: Prime From the Old Platform and SMS Transition Policy

Step 0 is mandatory. Intelligent Golf's infrastructure stays live through cutover. This phase uses IG's established reputation to prime members before the new subdomain sends anything — the single highest-leverage action in the migration.

Final IG broadcast:

  • IG broadcast drafted: plain announcement from a named human at the club, using IG's normal sending identity (same From name, From address, and template the club normally uses)
  • Broadcast announces the new sending address (info@mail.[clubdomain.co.uk]) and go-live date; asks members to check their junk folder and mark as safe; add-to-contacts phrased as optional secondary nudge
  • Broadcast reviewed and approved by client decision-maker
  • Broadcast sent from IG 5–7 days before Day 1 GHL Trust Bridge send
  • Final IG broadcast date recorded: [DD Month YYYY]

Member-portal login notice:

  • Notice published on the IG member-portal login page: new address and go-live date; keep live from broadcast date through to Day 14 post-cutover

Clubhouse / pro-shop signage:

  • A4 notice printed and placed at reception and pro-shop counter; staff briefed; remove after 2 weeks
  • QR / vCard posters printed and placed at the pro shop, first tee, and bar — scanning saves the new sending address straight to the member's contacts

One-off transition SMS:

  • SMS drafted: strictly neutral service message only — informs members of the new sending address and asks them to check inbox / junk and mark as safe
  • SMS contains NO "reply STOP" line and NO promotional content — adding either reframes it as a marketing message and triggers PECR / DUAA 2025 obligations (fines up to £17.5m)
  • SMS is a single one-off administrative send during migration — NOT a per-campaign automation and NEVER framed as "you didn't open our last email"
  • PECR basis for the SMS confirmed and documented
  • SMS approved by client decision-maker
  • SMS scheduled / sent date: [DD Month YYYY — or N/A]

IG rollback insurance:

  • Intelligent Golf kept active for the first 1–2 GHL sends to Tier A — minimal overlap only, not a long dual-run; close the overlap once Day 2–3 metrics are clean (complaint < 0.10%, hard bounce < 0.5%)

Phase 6 — Ramp Launch

Full guidance: Ramp Schedule

The shared Mailgun IP is already warm. This phase builds domain and subdomain reputation — not IP reputation.

  • GHL Manual Drip Mode configured — target send rate set to the stage-appropriate emails/hour from the ramp schedule; burst sending disabled
  • Send times scheduled slightly off the hour (e.g. 09:13, 10:17) to avoid automated-congestion patterns
  • Day 1 send: Tier A only, roughly 15% of the active base per ramp schedule (~105 emails for a 700-member club), Trust Bridge email
  • Transition SMS fires in parallel with the Day 1 Trust Bridge send (if SMS is included)
  • Google Postmaster Tools checked within 24 hours of first send — spam-rate signal recorded; "not enough data" is acceptable for the first 3–5 days
  • Mailgun analytics dashboard open — diagnose delivery, bounces, and deferrals here; GHL's in-platform view on custom SMTP shows opens and clicks only
  • Day 1 volume and result logged in daily log (Section 3)
  • Phase advancement gates checked before any volume increase (see Section 2.7 below)

Phase 7 — Daily Monitoring

Full guidance: Monitoring & Stop Rules

  • Named daily monitor confirmed: [Name]
  • Monitoring cadence confirmed: daily during the 7–14 day ramp (minimum); weekly once at full volume
  • GHL dashboard access confirmed for monitor
  • Google Postmaster Tools access confirmed for monitor
  • Mailgun analytics access confirmed for monitor
  • Alert thresholds understood (see Section 2.8 — Thresholds Reference)
  • Daily log format (Section 3) understood; committed to filling one row per sending day

Phase 7.1 — Phase Advancement Gates

Before increasing volume or moving to the next ramp stage, all of the following must be true for 2–3 consecutive clean send days at the current stage:

  • Gmail spam complaint rate: < 0.10% — 0.10–0.20% = hold and investigate; > 0.20% = stop all promotional sends before any new volume
  • Hard bounce rate: < 0.5% — 0.5–2% = amber / investigate; > 2% = pause new volume; > 3% = stop and re-validate the full list
  • Unsubscribe rate: < 0.30% — 0.30–1.0% = watch; > 1.0% = review content and frequency before continuing
  • Authentication pass rate: ~100% — any unexplained drop pauses scaling
  • Google Postmaster spam-rate signal: Pass (no data = acceptable in first 3–5 days only; Low / Bad = reduce to Tier A and investigate)
  • No active blocks or deferrals from major providers (Gmail, Outlook, Yahoo, Apple)
  • No DMARC failures exceeding 1% of authenticated volume

If any gate criterion is not met, hold at current volume, log the reason in the daily log, and refer to Monitoring & Stop Rules for the pause and investigation protocol.

Advance on metrics, not the calendar. The default track completes in 7–14 days for a clean list. It takes longer only if a provider shows stress. The 30/60-day fallback is for genuinely messy or stale data — not a safer default.


Phase 7.2 — Thresholds Reference

MetricGreenAmber — Review / HoldRed — Stop & Investigate
Gmail spam complaint rate< 0.10%0.10–0.20%> 0.20% pause · ≥ 0.30% hard failure — Google / Yahoo reject
Hard bounce rate< 0.5%0.5–2.0%> 2.0% pause new volume · > 3.0% stop + revalidate list
Unsubscribe rate< 0.30%0.30–1.0%> 1.0% review content / frequency
Authentication pass rate~100%Any unexplained dropDrop correlates with volume increase
Postmaster spam-rate signalPassNo data (days 1–5 only)Fail / Low / Bad
Provider blocks / deferralsNoneIsolated / resolvingSustained or multiple providers
DMARC failures< 1% of auth volume1–3%> 3% — investigate alignment

Open rate is not in this table and is not a gate metric. Apple Mail Privacy Protection pre-fetches pixels regardless of whether a human reads the message (~49% of UK opens). Google does not verify third-party open rates, and Gmail's domain/IP reputation dashboard was retired on 30 September 2025. Judge health by spam complaint rate, bounces, blocks, clicks, replies, and real-club conversions.


Phase 8 — Ramp Complete Sign-Off

  • Full mailable base reached: Tier A + Tier B + controlled Tier C (and Tier D if the 60-day fallback was used and metrics were consistently green)
  • All phase advancement gates met at full volume for 7 consecutive days
  • Google Postmaster spam-rate signal stable at Pass; Mailgun delivery rate stable
  • DMARC policy reviewed — consider moving from p=none toward p=quarantine; do not change without a test period and client sign-off at each stage
  • Client decision-maker informed: migration complete; new sending infrastructure fully operational
  • Handover to ongoing campaign management schedule confirmed; campaign manager named
  • Runbook archived with all daily logs completed
  • Sign-off date: [DD Month YYYY]
  • Signed off by (Albatross): [Name]
  • Signed off by (client): [Name]

3. Daily Monitoring Log

Fill one row per sending day during the ramp. Continue weekly once at full volume. Pull metrics from Google Postmaster Tools and Mailgun analytics — GHL's in-platform view on custom SMTP shows opens and clicks only; delivery, bounce, deferral, and complaint data must come from Postmaster and Mailgun.

Open rate is recorded for reference only — it is not a gate metric and should not influence advancement decisions. Apple MPP inflates Apple-domain opens significantly; Gmail retired its domain/IP reputation dashboard on 30 September 2025.

DateVolume sentCumulative totalGmail spam %Hard bounce %Unsubscribe %Auth pass %Postmaster signalProvider blocks / deferralsClick rateReply rateDecisionNotes / Actions
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause
DD/MMAdvance / Hold / Pause

Add rows as needed for 30/60-day fallback tracks or extended post-ramp monitoring.

Fleet log: every migration makes the next one smarter

After each club completes its ramp, record one row in the shared migrations log. The point: defaults stop being research-derived and become field-calibrated.

ClubList sizeActive baseDay-1 % and countDays to full basePeak spam %Peak bounce %Trust Bridge reply %Value-capture PS used?Provider issuesDeviations from SOPOne lesson
[Club]
  • After five clubs, review whether the Day-1 ~15% start and the ~1.5x daily step still match the actuals — recalibrate the SOP if they do not.
  • Feed the log into the quarterly re-research pass: field data outranks published guidance.

4. Pause Protocol — Quick Reference

If any amber or red threshold is hit, the same-day pause owner (named in the club facts block) can suspend all sends immediately without waiting for approval. No send continues while a threshold breach is open.

  1. Pause — suspend all scheduled sends in GHL immediately
  2. Log — record the trigger metric, date, volume, and time in the daily log
  3. Diagnose — refer to Monitoring & Stop Rules for investigation steps; check GHL bounce / complaint reports, Postmaster spam-rate signal, Mailgun analytics, and DMARC aggregate reports
  4. Root cause — identify whether the issue is list quality (bad addresses, cold segment mailed too early), content (spam-trigger language, broken links, missing unsubscribe), authentication failure, or a provider-specific block
  5. Fix — apply the relevant remedy: re-suppress affected addresses, fix authentication records, revise content, reduce volume tranche
  6. QA — seed-panel QA pass before resuming (see Seed Panel (Diagnostic))
  7. Resume — restart at a lower volume than the pre-pause level; advance only when gate criteria are met for 3 consecutive days

A pause and careful recovery is always the right call. A sustained period of bad sends can damage subdomain reputation at the inbox-provider level, triggering filtering or rejection that can take weeks to reverse. Do not restart under pressure to catch up on a campaign schedule.


5. Sign-Off Boxes

Pre-Launch Sign-Off (all phases 0–5 complete)

Albatross operatorName: ________________ Date: ________________
Client decision-makerName: ________________ Date: ________________
Compliance reviewed byName: ________________ Date: ________________
All DNS records verified- [ ] Confirmed — MXToolbox screenshots saved
Seed-panel QA passed- [ ] Confirmed — inbox placement logged in Phase 4 above
Templates approved- [ ] Confirmed — approval record saved
Step 0 IG broadcast sent- [ ] Confirmed — date: ________________
Portal notice live- [ ] Confirmed
Clubhouse signage placed- [ ] Confirmed

Ramp Complete Sign-Off (Phase 8)

Albatross operatorName: ________________ Date: ________________
Client decision-makerName: ________________ Date: ________________
Final mailable base reached[n] addresses
Ramp track completed7–14 day default / 30-day fallback / 60-day fallback
Postmaster spam-rate signal at closePass
DMARC policy at closep=none / p=quarantine / p=reject
Handover to campaign schedule confirmed- [ ] Yes — campaign manager: [Name]

6. Page Reference Index

TopicPath
How the migration works and why it mattersHow Warm-up Works
Compliance — UK GDPR & PECR, consent, DPACompliance
Step 0 — final IG broadcast and priming channelsStep 0: Prime From the Old Platform
Domain, DNS, SPF, DKIM, DMARC, PostmasterOperator Runbook
Data export, hygiene, segmentation, Tier A–EData Prep & Segmentation
Template copy, format guidance, Trust BridgeEmail Templates
Seed panel — placement diagnostic and protocolSeed Panel (Diagnostic)
Volume ramp, gating algorithm, manual throttlingRamp Schedule
Daily metrics, Postmaster, Mailgun, stop rulesMonitoring & Stop Rules
One-off transition SMS and PECR basisSMS Transition Policy

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