How do I fix "cannot send email" / SMTP problems? Print

Sending failures are almost always an outgoing (SMTP) setting issue. Work through these:

1. Confirm SMTP is mail.yourdomain.com on port 465 (SSL/TLS) or 587 (STARTTLS).
2. Enable outgoing server requires authentication and use your full email address and password.
3. Double-check the password — a recent change in cPanel must be updated in your mail app.
4. If you're on public Wi-Fi or a mobile network, your ISP may block port 465; try 587, or test via Webmail to confirm the account itself works.

If Webmail sends fine but your app doesn't, the problem is the app's SMTP settings. If even Webmail fails, the address may have hit a sending limit or been flagged. Open a ticket and we'll check the mail logs.