Mail Probe — SMTP / IMAP / POP3 diagnostics

Protocol

SMTP IMAP POP3

Server host

The mail server hostname — not your website domain.

Encryption

SSL/TLS STARTTLS None

Port

Common: 465

Credentials (optional — leave blank to test connection only)

Username

Password

For Gmail / Outlook / Yahoo, use an app password.

Advanced

Allow insecure TLS (accept self-signed / mismatched certs)

Send a real test email after auth succeeds

No results yet

Enter your server details and run the diagnostics. You'll get a step-by-step breakdown of exactly what works and what doesn't.