IIS Port numbers?

80 is the default port for HTTP traffic
21 is the default port for FTP for sending and recieving
data.
443 is the defaulr for SSL traffic
port 25 smtp



FTP: 20, 21,
SMTP: 28,
HTTP: 80,
SSL:443,
DNS: 53
POP3:110
SMTP:25
NNTP:119
IMAP:142


SSL port no:

HTTP: 443
SMTP:456
POP3:995
IMAP:993
NNTP:563
LDAP:636