RPC
TCP/IP port 135

NetBIOS 
TCP/IP port 139

DNS utilizes
TCP/IP port 53

X.400 utilizes
TCP/IP port 102, 103, and 104

LDAP
TCP/IP port 389 (clear authentication) and 636 (SSL)

IMAP4
TCP/IP port 143 (Basic/NTLM) and 993 (SSL)

NNTP
TCP/IP port 119

SMTP
TCP/IP port 25

POP3
TCP/IP port 110 (Basic/NTLM) and 995 (SSL)