SMTP Server Tester

Test your SMTP server connection and send test emails

SMTP Configuration

Enabled

Your credentials are only used for testing and never stored.

Email Content

About SMTP Testing

Port 25: Standard SMTP port, often blocked by ISPs.

Port 465: SMTP over SSL (SMTPS), secure connection.

Port 587: Mail submission with STARTTLS, modern secure choice.

Testing Considerations:

  • Some providers require specific sender addresses
  • Check spam folders if test emails don't arrive
  • Firewalls may block outgoing SMTP connections
  • Authentication requirements vary by provider