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The Quiet Reputation Collapse Killing Your BFCM Revenue

A pre-peak audit framework for sender reputation, list health, and warmup cadence.

Inboxing Maestro TeamMarch 2, 202510 min read

Every year we see the same pattern: brands ramp send volume 4–6x heading into BFCM, hit a spam trap or two, and watch their Gmail placement collapse the week revenue matters most. The damage is usually invisible until it's catastrophic.

The 6-week pre-peak audit

Week -6: Pull a full list health report. Suppress anyone inactive 180+ days who hasn't clicked.

Week -5: Validate authentication. SPF, DKIM, DMARC at p=quarantine minimum. BIMI ready if eligible.

Week -4 to -2: Begin volume warmup. Add no more than 25% week-over-week to your engaged segment.

Week -1: Freeze list onboarding from paid acquisition. Spam traps spike from quick-fire lead-gen.

What we look for in a reputation audit

Gmail Postmaster reputation history, complaint trends, spam trap exposure, domain age signals, and BIMI/VMC eligibility. If any of these show degradation, the fix is structural — not a subject-line tweak.

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