SMTP Email Configuration Tester

Test your SMTP email server settings with this easy-to-use configuration tool

Please enter SMTP host
Please enter a valid port number
Please enter a valid email address
Please enter your SMTP password
Please select an encryption type
Please enter sender name
Please enter a valid recipient email

Gmail

Host: smtp.gmail.com

Port: 587 (TLS) or 465 (SSL)

Note: May require App Password if 2FA is enabled

Outlook/Office 365

Host: smtp.office365.com

Port: 587 (TLS)

Note: May require specific app permissions

Yahoo Mail

Host: smtp.mail.yahoo.com

Port: 587 (TLS) or 465 (SSL)

Note: Requires App Password

Zoho Mail

Host: smtp.zoho.com

Port: 587 (TLS) or 465 (SSL)

Note: Use your full email as username

  • Check firewall settings: Make sure your server allows outgoing connections on the SMTP port.
  • Authentication issues: For Gmail, Outlook, or Yahoo, you may need to create an app-specific password.
  • Port blocking: Some ISPs block outgoing connections on port 25. Try using port 587 with TLS instead.
  • Check credentials: Ensure your username and password are correct. For most services, the username is your full email address.
  • SSL/TLS issues: If you're having encryption problems, try switching between SSL and TLS to see which works.