What is a soft bounce? A Clear Guide

A soft bounce is a temporary failure (full mailbox, server down). Retry it a few times before suppressing.

Why it matters

Knowing a soft bounce helps you send mail that lands 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 an AI watching list health and deliverability — and it welcomes senders SES, SendGrid and Mailchimp reject, from $8. Run the free checker or see plans.