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Useful Tools & Utilities to make life easier.

Free Online SMTP Test Tool - Check Email Delivery & Server Status

Test and diagnose your SMTP server instantly. Verify email delivery, check port configurations, and troubleshoot connection errors in seconds.


Free Online SMTP Test Tool - Check Email Delivery & Server Status

What is an Online SMTP Test Tool?

An Online SMTP Test Tool is a free web-based utility designed to verify and troubleshoot your SMTP (Simple Mail Transfer Protocol) server configuration. It simulates sending an email from your server to check if it's operating correctly, securely, and without delays.

Why Test Your SMTP Server?

If your website emails are landing in the spam folder or not sending at all, checking your SMTP settings is the critical first step. Our advanced diagnostics help you:

  • Verify Authentication: Ensure your SMTP username, password, or API keys are fully valid.
  • Test Encryption Protocols: Check secure mail connections via SSL or TLS encryption.
  • Check Standard Ports: Test and diagnose common mail delivery ports including 25, 465, 587, and 2525.

How to Check Your SMTP Connection

Troubleshooting your mail server is straightforward. Simply input your server credentials:

  1. SMTP Host & Port: Enter your outgoing mail server address and port number.
  2. Security Type: Select None, SSL, or TLS based on your server configuration.
  3. Authentication: Provide your sender login details (if required).
  4. Click "Test Server" to view the live connection handshake logs and error codes instantly.


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