What is email bounce rate? A Clear Guide

Bounce rate is the share of sends that fail. Keeping it under ~2% signals good list hygiene and protects reputation.

Why it matters

Knowing email bounce rate helps you land in the inbox. See the deliverability checklist.

How Rainmail helps

Rainmail sends from your own domain on a dedicated, isolated IP with SPF, DKIM, DMARC, reverse-DNS and managed warm-up handled for you, plus a REST API and an AI watching deliverability — and it welcomes senders SES, SendGrid and Mailchimp reject, from $8. Run the free checker or see plans.