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HP LaserJet Pro MFP - Error Message "The SMTP uses an authentication method that is not supported" displays when configuring Scan to Email using Gmail

Issue

When testing the configuration setting for the Scan to Email feature using a Gmail account on an HP LaserJet Pro Multifunction Printer (MFP), one of the following messages might display either on the printer’s control panel or in the Embedded Web Server (EWS):
  • The SMTP server uses an authentication method that is not supported. Try a different server.
  • Authentication failure SMTP: SMTP server does not support authentication.
  • Cannot resolve the SMTP server. Check the SMTP and DNS server settings with your system administrator or Internet Service Provider.
note:
When trying to access the Gmail account from the printer, Google might send an email stating that the Google account is blocked.
Figure : Google Account

Workaround

In the Google settings, go to Allow for less secure apps and select the Turn on option, OR, for information about changing the setting, go to https://www.google.com/settings/security/lesssecureapps
note:
This method allows a standard SSL/TLS authentication method.
For more information, go to Google’s Support page https://support.google.com/accounts/answer/6010255.
Figure : Access for less secure apps

Cause

In summer 2014, Google made a change to their SMTP authentication by using the 2–Step authentication.