How to use this tool:

  1. Fill in your SMTP server details (host, port, username, password)
  2. Enter the sender and recipient email addresses
  3. Optionally customize the test email subject and content
  4. Click “Test SMTP Connection” to verify your settings
  5. If connection is successful, click “Send Test Email”
Test Results Not tested
Your test results will appear here…
Common SMTP Settings
Troubleshooting
Additional Resources

Common SMTP Server Settings

Here are some common SMTP server configurations:

Provider SMTP Host Port Encryption
Gmail smtp.gmail.com 587 TLS
Outlook/Hotmail smtp-mail.outlook.com 587 TLS
Yahoo smtp.mail.yahoo.com 465 SSL
Office 365 smtp.office365.com 587 TLS
Zoho smtp.zoho.com 465 SSL

Troubleshooting Common Issues

  • Connection timeout: Check your SMTP host and port are correct. Firewalls may block SMTP ports.
  • Authentication failed: Verify your username and password. Some services require app-specific passwords.
  • SSL/TLS errors: Try changing the encryption method or disable certificate verification (less secure).
  • Email not received: Check spam folder. Some providers block emails from unrecognized sources.
  • Port blocked: Many ISPs block port 25. Try ports 587 or 465 instead.

Additional Resources