What is suppression handling? A Clear Guide

Suppression handling automatically removes bounced, complained and unsubscribed addresses so you never email them again.

Why it matters

Knowing suppression handling helps you build reliable sending. See the email API quickstart.

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, 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.