Fixing Email Authentication Errors

Common Error Messages

• "Authentication failed" or "Invalid credentials"
• "Username and password not accepted"
• "Connection timed out"

Troubleshooting Steps

1. Check username: Make sure you are using the full email address (e.g. you@yourdomain.com), not just the username part.
2. Check password: Try logging in to webmail with the same credentials to verify the password is correct. If webmail fails too, reset the password in DirectAdmin.
3. Check server settings: Verify the incoming and outgoing server addresses and ports match the values in the Email Clients guides.
4. Check SSL settings: Make sure you are using SSL/TLS on port 993 for IMAP and STARTTLS on port 587 for SMTP.
5. Firewall: Some ISPs block port 25. Use port 587 for sending mail.