SMTP Email Configuration Tester
Test your SMTP email server settings with this easy-to-use configuration tool
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.