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AuthenticationFailedException: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is

Jira Stuff
Jira Stuff Dec 29, 2022

Hi everybody in the Jira community.

I'm trying to setup an outgoing mail but it keeps saying "AuthenticationFailedException: 535 5.7.139 Authentication unsuccessful, SmtpClientAuthentication is disabled for the Tenant." and I don't know how to fix it.

My setup for incoming mail works fine.

Has anyone had this problem before?

Thank you and happy new year :-)

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Nic Brough -Adaptavist-
Nic Brough -Adaptavist- Community Leader Dec 29, 2022

This is exactly what it says it is - your mail server is not set up to allow the user you are using to use SMTP authentication.

You will need to talk to the mail server administrators to find out what authentication they have allowed, or to get them to enable it.

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