Catch-all domain
A domain configured to accept mail to any address at all, valid or not — so no verification method can confirm a specific mailbox exists there. Detected, not guessed around.
A domain configured to accept mail to any address at all, valid or not — so no verification method can confirm a specific mailbox exists there. Detected, not guessed around.
Also see: Accept-all, Email verification
Real lookup against the live mail server — not a sample.
Related
- Accept-all — cold email glossary
Another name for a catch-all domain. Some vendors report it as 'valid' because the server said 250. That is the domain accepting everything, not a confirmed mailbox.
- Email verification — cold email glossary
Confirming a specific mailbox exists by checking with the receiving mail server, as opposed to only checking the address is well-formed or the domain accepts mail.
- Cold email & deliverability glossary
Plain-language definitions for the terms that come up in cold outreach and email deliverability: bounce rate, catch-all, SPF/DKIM/DMARC, sender reputation, and more.
- Bounce rate — cold email glossary
The share of sent emails a mail server refuses to deliver. A hard bounce means the mailbox does not exist; a soft bounce means it is temporarily unreachable.