Common Imail Ports by Feature:
Email
|
Port
|
Used by
|
25
|
SMTP
|
587
|
Alternate SMTP Port (if enabled)
|
465
|
SMTP SSL
|
110
|
POP3
|
995
|
POP3 SSL
|
143
|
IMAP4
|
993
|
IMAP4 SSL
|
514*
|
IMail Sys Logger
|
53*
|
DNS
|
80**
|
Web Mail
|
443** |
Web Mail SSL |
*UDP
**Configurable in IIS
WorkgroupShare (WGS)
|
Port
|
Used by
|
8100
|
WGS Client - Server
|
8101
|
WGS Client - Server SSL
|
8109
|
Free/Busy Information
|
Ipswitch Instant Messenger (IIM)
|
Port
|
Used by
|
5177
|
Instant Messaging
|
5178
|
Instant Messaging
|
53*
|
DNS
|
*UDP
Additional Features
|
Port
|
Used by
|
80
|
CYREN Premium Anti-Spam
|
1344
|
Anti-Virus by Symantec
|
80
|
Microsoft Active Sync
|