Is This Domain a Catch-All?
Enter a domain to simulate a deep SMTP handshake. We will ping a randomized email address to see if the mail server accepts it or safely rejects it.
Real-Time SMTP Handshakes & Accept-All Diagnostics
Safeguard your sender reputation by instantly identifying risky Accept-All domains in real-time. Bypassing flawed traditional verification, we execute genuine, physical SMTP handshakes and strict MX record queries, deploying live randomized probing to definitively test actual server routing policies. Guaranteeing absolute technical accuracy with strictly real-time operations and zero simulated data, our high-performance backend accurately detects whether a server is strictly issuing 550 errors or dangerously masking non-existent mailboxes as valid. Seamlessly filter out dangerous Catch-All honeypots to completely protect your IP from delayed hard bounces and strictly optimize your cold-outreach deliverability.
Enter a domain to simulate a deep SMTP handshake. We will ping a randomized email address to see if the mail server accepts it or safely rejects it.
Catch-All servers accept every email you send them, even if the address doesn't exist. This leads to hidden hard bounces that destroy your sender reputation over time.
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