Test your SMTP server

Is your SMTP server reliable and fully secured ? Is it used for spamming ?
This script will look for any configuration trouble and display any problem encountered. Just enter the server address below to start the tests.

Input server address:



Tags: smtp server online check, test smtp server online, check smtp server, smtp checker, check smtp

3 Comment(s)

  1. ratbag_359 | May 16, 2010 | Reply

    great site thanks :)

  2. ColdFusion Developer | Sep 28, 2011 | Reply

    Great tool! However, I noticed that one of my SMTP servers seems to fail at test 17. I’m running IIS7 (win2k8 r2). Do you have any suggestions on how to lock down SMTP services on Windows to prevent this type of exploit?

  3. ColdAssassin | Jan 1, 2014 | Reply

    @ColdFusion – I am having the same issue, test 17. Seems like a big exploit.

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