Spam Traps Explained: Pristine, Recycled and Typo Traps

A spam trap looks like a normal address but is never used by a real person. Any mail it receives proves the sender collects or keeps addresses carelessly.

Pristine traps

Created from scratch and published where only scrapers will find them. If you email one, your list contains scraped or purchased data.

Avoid: never buy or scrape lists, and use confirmed opt-in.

Recycled traps

Real addresses that were abandoned, then turned into traps after a long time of returning errors. They punish senders who never clean old lists.

Avoid: remove contacts that never engage, and re-verify old lists regularly.

Typo traps

Domains that look like popular ones, such as a misspelt Gmail, set up to receive mistyped addresses.

Avoid: correct typos at sign-up with real-time checks.

Impact

Hitting a trap can land you on a blocklist and hurt inbox placement for all mail.

What a verifier can and cannot do

A good verifier removes invalid, long-dead and typo addresses, which lowers the risk. No tool can reveal every trap, because providers keep them secret, so list hygiene and consent remain essential. Start with the bulk verifier.