SMTP Prober is a Windows tool that enables you to test the availability of email servers and their capacity to reliably deliver new messages. Similar to Multi Commander, there is support for encrypted data transmission through TLS or SSL to ensure the security of all communications.

Testing

Users are instructed to enter the host address, port and account credentials to begin the evaluation. The utility works with several popular authentication methods, including:

Plain;
Login;
Cram-MD5.

After providing the required information you can send sample messages to check whether or not the SMTP server successfully delivers emails to recipients. Details like response codes and potential errors are displayed in the main window, which is helpful for quickly identifying and resolving connectivity issues.

Benefits

The software simplifies the process of troubleshooting SMTP related problems by providing real time feedback. Users are able to easily determine if a connection issue lies with the server, port, authentication or SSL configuration. Proactively testing email communications before any critical outage is important for identifying potential glitches without causing downtime and affecting business processes.

Features

free to download and use;
designed to help you resolve email transfer errors;
it is easy to test the availability and responsiveness of any SMTP server;
supports encrypted SSL connections;
compatible with modern versions of Windows.