How to Keep Your Email Bounce Rate Under 2%
A bounce rate above 2% destroys sender reputation and sends emails to spam.
PostMTA Bounce Intelligence
Instant hard bounce suppression — invalid addresses suppressed within hours
Soft bounce retry — 72-hour retry window before suppression
Feedback loop integration — FBL from Gmail, Microsoft, Yahoo
List hygiene scoring — engagement-based subscriber scoring
Best Practices
- Verify emails at signup (API check before adding)
- Remove addresses soft-bouncing 3+ times
- Monitor sender score at postmta.com/dashboard
- Use dedicated IPs for different list segments
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