I am in a bit of a pickle and not sure what's wrong. We are using a cloud instance of JIRA and have 3 service desk projects successfully using custom email address connected to our O365 mail server.
I am trying to setup same for a new project, however, receiving below error message:
"Unfortunately JIRA couldn't connect to the mail server. Here is what the mail server said: "AUTHENTICATE failed." Check out our troubleshooting docs for help resolving the issue.
Exchange team is claiming that the new email address has exactly the same settings as the other emails which are successfully working with JIRA and I need to check within JIRA for any issue. I am turning to the community to help troubleshoot this.