SMTP Diagnostic Program

DISCONTINUED - Our SMTP diagnostic program has been discontinued, for port testing please use our web-based SMTP port test tool, and to test your SMTP credentials please use our web-based SMTP authentication test tool.

This program checks your connectivity to the Internet and our service, it will also check your username and password by sending a test email.

This program is provided subject to the following agreement:

Program Expiry Date:

  • 31-December-2021


  • Microsoft Windows Operating System
  • Internet Connection

Download AuthChk.exeRight click then save the file to your desktop

If you have any questions please contact us.