Outbound mail not sending
Diagnose when campaigns or replies stay queued or fail.
Prerequisites
- Verified sending domain and inbox
Steps
- Open Mail health and review queue depth
- Confirm domain verification and suppression status
- Check sending policy limits and emergency stop
- Review quarantine for policy blocks
Unverified domains, suppressions, and policy blocks are the most common causes. See deliverability articles for bounce-specific issues.
Expected result
Queued messages deliver or clear errors explain the block.
If something goes wrong
If health shows no issues but mail still fails, open a support request with Pam Pod slug, domain, and sample message IDs.