We've just released a new command line tool for testing SMTP servers. The tool is based on a mini-site we built which runs a number of tests on SMTP servers automatically. The command line tool is useful because while the website could tell you why you might not be able to accept email from an anonymous server on the Internet it could not be used to find out why you cannot send email to another server.
The Command line tool is a self contained package which can be copied directly onto a Windows or Linux server and executed. It runs all the tests that the test smtp website does from your SMTP server and is useful for diagnosing faults.
We've released both a Windows and Linux build, an MSI installer has also been built for the convenience of Windows users. We've released the software as Freeware and it's free to use for non commercial purposes.
You can download a copy from our website by clicking here.
