Richard Smith's Blog

The thoughts of an easily distracted software developer...


One of the challenges I’ve had is testing SMTP server configuration’s supplied by our clients. Often there are problems with certificate validity or various other security settings. I wrote a simple tool to allow for testing/debugging from the command line. You can find the project at SMTPTester and the first version can be downloaded at SMTPTester - 0.1.0.

It allows you to send test messages, dump the certificate’s of the SMTP server to disk and optionally ignore certificate errors. There is detailed error logging available in verbose mode.