"5.7.4 Unrecognized authentication type error" stops outgoing email notifications from being sent

Document ID : KB000021380
Last Modified Date : 14/02/2018
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This document explains what to do when outgoing email notifications are not sent and the error "Can't login to the server Error (504) 5.7.4 Unrecognized authentication type" is received.


If Mail or Relay servers that do not use any authentication except for the anonymous account are in use, then to solve the problem, deinstall these Service Desk Manager Email Options: smtp_security_level, login_userid and login_password. Then recycle the Service Desk Manager services.

The error should no longer appear, and email notifications should be sent out from Service Desk.