I've just installed version 5.7 on a new server after running 5.1 successfully on another one for some time and am trying to set up the server setting so I can use the Password Expiry Notification but I am receiving the below error:

Exception in startTLS using default SSL socket factory: host, port: smtp.office365.com, 587; Exception: java.lang.IllegalArgumentException: TLSv1,TLSv1.1,TLSv1.2

I'm trying to save the exact server details as are being used currently with TLS selected.

Any help would be greatly appreciated!