We are trying to change our mail handlers over to a different mail domain, i,e, from @company1.com to @company2.com. We assumed that this should be simply changing the email accounts and password.
All mail handlers work fine for the old mail domain but when we test connection using the new mail domain we get errors.
OutgoingMail - SocketTimeoutException: Read timed out
IncomingMail - AuthenticationFailedException: Read timed out
Both mail domains are via office365.com
We are running JIRA server version on Windows Server 2016 with SQL 2017 with IIS10
At the same time, the infrastructure running the JIRA instance has moved AD to new infrastructure domain.
Would greatly appreciate any assistance in resolving this issue.