YOUR BOUNCE RATE SHOULD BE LOW. SO SHOULD YOUR BILL.LESS INVOICE. MORE INTERNET.KILL BOUNCES. NOT YOUR BUDGET.YOUR BOUNCE RATE SHOULD BE LOW. SO SHOULD YOUR BILL.LESS INVOICE. MORE INTERNET.KILL BOUNCES. NOT YOUR BUDGET.YOUR BOUNCE RATE SHOULD BE LOW. SO SHOULD YOUR BILL.LESS INVOICE. MORE INTERNET.KILL BOUNCES. NOT YOUR BUDGET.YOUR BOUNCE RATE SHOULD BE LOW. SO SHOULD YOUR BILL.LESS INVOICE. MORE INTERNET.KILL BOUNCES. NOT YOUR BUDGET.YOUR BOUNCE RATE SHOULD BE LOW. SO SHOULD YOUR BILL.LESS INVOICE. MORE INTERNET.KILL BOUNCES. NOT YOUR BUDGET.
bytecheck.
Join the beta
Glossary / BYTECHECK

What is catch-all email?

A domain that accepts mail for any address, so a specific mailbox can't be confirmed.

Catch-all servers answer 'yes' to every SMTP check. Verifiers mark these as risky. Send to them in small batches and watch engagement.

Try the free email checker →

YOUR NEXT LIST DESERVES BETTER.

KILL BOUNCES.
NOT YOUR BUDGET.

Join the beta

Private beta. Invites go out in waves.
100 free credits at launch.

THE OVERPAYING IS OVER. ✓