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⚠️ Critical Issue

Postmark High Spam Complaint Rate: Recover Sender Reputation

Your Postmark spam complaint rate is above 0.3%

Fix within 24 hours.

Check Postmark complaint metrics:

1

Review Postmark Activity for complaints

2

Check recent sends

3

Identify triggers

What Could Be Causing This?

Content Triggers Complaints

Most Common

Misleading subject or aggressive content causes complaints.

How to confirm:

Review Activity in Postmark.

Fix Playbook

Step 1: Fix Email Content

HoursImpact: High
  1. Match subject to content
  2. Soften language
  3. Add clear unsubscribe
  4. Remove aggressive CTAs

Postmark-Specific Note:

Postmark tracks complaints in Activity feed.

Prevention Checklist

  • Test subject lines before sending

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Frequently Asked Questions

How quickly does Postmark respond to high complaint rates?
Postmark flags high complaint rates in real-time; above 0.5% triggers account review.
Free Checklist

The exact checklist used by 2,000+ email senders to diagnose and fix inbox placement issues — free.

  • Authentication setup (SPF, DKIM, DMARC)
  • Sender reputation signals to monitor
  • List hygiene benchmarks
  • Content & engagement red flags

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