Mail notifications not working - SMTP server does not support authentication



I am using legacy TimeXtender, and am attempting to set up email notifications for execution package failures.

I have been given the information for the destination (email load balancing relay):
IP: 150.xx.xx.1
Port: 25

The destination firewall supposedly has all necessary ports open, although I don’t have direct access to check this.


When I test the notification, I receive the error “The SMTP server does not support authentication.” (see the picture below).


The app registration on Azure has the following API permissions (all delegated and granted admin consent):

  • Microsoft Graph User.Read
  • Microsoft Graph Mail.Send
  • Microsoft Graph SMTP.Send


I haven’t been able to find any information about the error message and what could be causing it. Any help or pointers for troubleshooting this further would be appreciated.


Best regards,



Best answer by Christian Hauggaard 4 July 2023, 11:06

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3 replies

Userlevel 6
Badge +5

Hi @Pontus Olausson 

Can you please try adding the User Name? Also does the “From Email” account have multi-factor authentication enabled? Please review the following articles


Userlevel 6
Badge +5

Hi @Pontus Olausson were you able to resolve the issue? have you tried adding the user name?

Userlevel 6
Badge +5

Hi @Pontus Olausson just following up on this - any updates?