GusMail prevents insecure sign-in attempts

Posted on April 28th, 2017 by

Gustavus GSuite applications (GusMail, GDrive,GCalendar) prevent sign-in attempts from external applications that do not use modern security standards.  Examples of these applications include:

  • Desktop mail applications such as Mozilla Thunderbird and Microsoft Outlook
  • The Mail app on your iPhone or iPad with version 6 or below
  • The Mail app on your Windows phone preceding the 8.1 release

Gustavus does not support using a 3rd party mail clients with GusMail. We recommend using the web interface ( or the Gmail app.

Learn more about GusMail at:




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