


TCP/80 and TCP/443 for Outlook Web Access (OWA) client access services, autodiscovery services and MAPI services. TCP/110 and TCP/995 for POP3 and POP3S client access services, respectively. TCP/143 and TCP/993 for IMAP and IMAPS client access services, respectively. TCP/25 and TCP/465 for SMTP and SMTPS mailing services, respectively.

Microsoft Exchange 2016 is part of the server applications from Microsoft that provides mailing services, mailbox, address book, client accesses, autodiscovery connectors among others.įor a standalone server, Microsoft Exchange 2016 uses the following networking ports:
