UC540 - can't get smtp working to Office365 for voicemail
Migrated to Office365 and using smtp.office365.com for the external smtp server, port 587, correct credentials and getting unknown smtp host. I can get a telnet client, and powershell to both work from the same server through smtp.office365.com, port 587, and same credentials. So it has to be something wrong on the UC540. Need help in figuring it out! I have read countless docs, sites, and support areas for past 2 days and still not working. Let me know what logs you need, I would appreciate any help to solve this one.