Glossary

What is a spam trap?

A spam trap is an email address that exists only to catch senders with poor list practices. Nobody uses it to read mail, so any message it receives was sent to an address the sender did not collect properly. Hitting traps damages sender reputation and can get a domain or server listed on blocklists.

Published by Sellinger AI. Numbers and settings checked on 24 October 2026 against the fact register. Report an error.

What kinds of spam traps are there?

Common trap types
Type	How it is created	How a list picks it up
Pristine	An address that was never used by a person	Scraping websites or buying lists
Recycled	An old address, closed and later turned into a trap	Lists that are years old and never cleaned
Typo	Misspelled domains of real providers	Addresses typed by hand into forms

How do lists end up with traps?

Mostly by being old or bought. A scraped or purchased list can contain addresses planted on websites as traps. A list from three years ago can contain addresses that went dead and were recycled. Neither shows up as a bounce, which is what makes traps hard to see.

How do you avoid them?

Do not buy lists of unknown origin.
Do not scrape addresses from websites.
Re verify old lists before you use them again.
Watch for sudden drops in replies, which can be a sign of reputation damage.

How Sellinger handles it

Sellinger's contact lookups search a database of 700M+ contacts; the B2B lead database buying guide covers what to ask any data provider. Before every send on email, LinkedIn and WhatsApp, the platform checks the team's suppression list and refuses the send when the contact is on it or when the check cannot be completed.

Sellinger sends from your own connected Gmail or Outlook mailbox. It does not set up or check your domain records, run inbox placement tests or monitor your domain, so you or your IT provider set up SPF, DKIM and DMARC at the domain, so blocklist checks are yours to run.

Common questions

Can I find out which address is a trap?

Not reliably. Trap operators do not publish them. Good list hygiene is the only defence.

Does verification catch spam traps?

Not always. A trap can look like a valid mailbox. Avoiding bought and scraped lists matters more.

What happens if I hit one?

Your reputation drops, and with repeated hits your domain or server can be listed on a blocklist, which pushes mail to spam.

Sources and method

General deliverability practice. Sellinger behaviour from the fact register, checked 24 October 2026.