Key points
- Reputation = how mailbox providers trust your sending IP/domain
- Bounces, complaints, spam traps hurt it
- Consistent, engaged sending helps
- New domains need gradual warmup
How to do it
- Keep bounce rate low (clean lists)
- Keep complaints under 0.1%
- Send to engaged recipients
- Warm up new domains gradually
- Monitor via Postmaster tools
Common mistakes
- High-volume cold sends from new domains
- Ignoring complaint rates
- Purchased lists
Reputation-aware email — freeNo card required — free forever up to 10 mailboxes.