What is a spam trap? A Plain-English Guide
A spam trap is an address used by blocklists and mailbox providers to catch senders with poor list hygiene. Hitting one signals you are emailing addresses you should not, and can get you blocklisted.
Why it matters for deliverability
Understanding a spam trap is part of why list hygiene protects your reputation. Get it right and more of your mail reaches the inbox; get it wrong and even legitimate mail can be filtered.
Related
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.