Office 365 Email Connector

[Paul Olsen]

Hi Guys,

I have been trying on and off for several weeks now and am unable to get an Office 365 email connection to work with Atlassian Cloud.

I have logged in and confirmed the O365 email user works through outlook.office.com

The user does not have MFA turned on in the O365 tennant

Settings used are: 
   Service Provider: Custom
   Hostname: outlook.office365.com
   Protocol: SECURE_IMAP
   Port: 993

Message received on test is:

javax.mail.AuthenticationFailedException: AUTHENTICATE failed. while connecting to host 'outlook.office365.com' as user 'systems@*domain*.com' via protocol 'imaps

Has anyone experienced this, or have any advice?

Thanks,

Paul

[Paul Olsen · Accepted solution]

Hi Again, My frustration ended soon after posting the question. 

The resolution in this instance was turning off "Security Defaults" for the Office 365 tenant.

https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/concept-fundamentals-security-defaults

All the best and I hope this helps someone in the same situation.

Paul