What is a sunset policy? A Plain-English Guide
A sunset policy automatically stops emailing subscribers who have not engaged in a set period. It protects sender reputation by removing dead weight from your active list.
Why it matters for deliverability
Understanding a sunset policy is part of keeping engagement high. Get it right and more of your mail reaches the inbox; get it wrong and even legitimate mail can be filtered.
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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 that watches your list health and deliverability — and it welcomes the senders Amazon SES, SendGrid and Mailchimp reject, from $8. Run the free 10-second checker or see plans.