My Bounce Rate Is Too High

Why Is My Bounce Rate So High?

A high bounce rate damages your sending reputation and can get you blacklisted.

Acceptable Bounce Rates

• Good: < 2%
• Warning: 2-5%
• Critical: > 5%

Common Causes

1. Invalid Addresses: Typos, old employees, fake signups.
2. Spam Traps: You bought a list containing honeypot addresses.
3. Poor Warm-Up: You sent 1,000 emails from a brand new domain.

How to Fix

1. Clean Your List:
   • Remove all hard bounces immediately.
   • Use double opt-in for new signups.
2. Slow Down:
   • If you're over 5%, pause entirely for 24 hours.
   • Resume at 10% of previous volume and climb gradually.
3. Check DNS:
   • Ensure SPF, DKIM, and DMARC are all Active.

See also

• Domain Stats
• Warmup Rules