A Mail Exchange Server receives SMTP mail delivery, with one section per Client (MS Outlook) with the use of its name by EXCHANGE-RPC Protocol, it can be used via a HTTPS by.
Exchange is built into Mail Server with SMTP mail transfer to the Client (MS Outlook) Protocol to its name by its EXCHANGE-RPC over HTTPS can be used as well.
Exchange is Mail Server one get send mail with SMTP part connected to the Client (MS Outlook) using its name, Protocol EXCHANGE-RPC It can be used through the HTTPS too.