Catch-all emails: what they are and whether to send to them
Short answer
A catch-all domain accepts mail for any address, so a normal verifier cannot tell whether a specific person exists there. Run a second check with a verifier built for catch-all servers, send to the ones it confirms, and keep the rest out of the first send or reach those people on another channel.
In short
- Catch-all results are uncertain, not invalid.
- A second pass with a catch-all specialist confirms part of them.
- What is still uncertain is a bounce risk; keep it out of the first send.
- LinkedIn is a good alternative channel for people whose email stays uncertain.
Last checked:
Why catch-alls are a problem
Verifiers check whether a mail server would accept an address. A catch-all server says yes to everything, so [email protected] and [email protected] look the same. Sending to all of them raises your bounce rate when the server later rejects or bounces the messages.
A practical approach
- Verify everything with a general verifier first.
- Send catch-all and unknown results to a second verifier built for catch-all domains.
- Send to the addresses it confirms.
- Keep the rest apart; reach them on LinkedIn or later, in a small test.
How TechSales handles it
Every list is verified with Reoon first; catch-all and unknown results get a second pass with BounceBan. What is still uncertain stays in a Risky emails folder and is not sent unless you move it back, and Route by channel can put people with a risky email on LinkedIn first. See Email finding and verification.
Frequently asked questions
- Is a catch-all address invalid?
- No. It may well exist; the verifier just cannot confirm it.
- Should I ever send to unconfirmed catch-alls?
- Only in small numbers from a healthy mailbox, watching the bounce rate. Most teams keep them out of the first send.
- Is there a Turkish version?
- Yes: E-posta doğrulama ve catch-all.
See it on your own market
Access is invite only and starts with a demo call. We walk through TechSales on your own list and tools.