I need to migrate, my actual smtp server, to smtp.office365.com I have configured the SMTP at the domain (mydomain.xxx.xxx), and all goes good. Because the email can be sent when I create a test TXT file and drop it into PICK UP folder of the MailRoot.
In the "Outbound SMTP Server" of Central Administration, I enter (mydomain.xxx.xxx) There is no email sent after I set up the alert. I see the error "Cannot connect to SMTP host "mydomain.xxx.xxx" in the Windows Event log.
I also tried to send and email from PowerShell cmdlet, but it fails.
I really appreciate your help.