Active Directory Federation Services – Server role and Proxy role.TCP/110 – Default unencrypted connectionĬommunication ports used by Office 365 table Protocol / Port.TCP/143 – Default unencrypted connection.TCP/IP communication ports required depends on the service you want to use/provide to your users if you want to allow POP or IMAP access to Exchange mailboxes, you have to allow POP and/or IMAP communication ports: This shows the TCP/IP communication ports which has to be allowed on proxy which doesn’t allow generic characters (such as *.) This is a translation/adaptation of a very good post from my friend, Arnaud Alcabez (original post )
