SMTP Tester Tool

The Free Online SMTP Tester is designed to verify and troubleshoot your email server functionality. You can easily connect to your server by entering either the server name or IP address in our simple interface. The tool allows you to specify both sender and recipient email addresses to simulate a complete email transaction, providing clear insights into whether your SMTP server is functioning correctly.

This diagnostic tool is particularly valuable for developers and system administrators who need to identify and resolve email delivery issues. By revealing exactly what’s happening during the SMTP connection process, you can quickly pinpoint configuration problems or connectivity issues. Once these problems are addressed, your email server will be able to reliably deliver messages to their intended recipients.

Our SMTP Tester provides a complete view of the entire communication process between your email client and the server, helping you ensure that your email infrastructure is properly configured and operating efficiently.