Outlook Configuration:
## You need the check the box that says "My Server Requires Authentication" from SERVERS Tab.
## From ADVANCED Tab please check both the box that says "This server requires a secure connection (SSL)".
## Please change the Outgoing mail (SMTP) port to 465 and Incoming mail (POP3) port to 995.
## Set your incoming and outgoing mail server address to "mail.domain.com".
If the above setting does not work for you then please submit a ticket, but it should work definitely.