Ports for MSN and Yahoo

[legate]

Do you guys know which ports are used by msn and yahoo messenger.
I have a Mac sitting behind a firewall and most of the ports are blocked and i need to find out which ports i need to open
thanks

 

[Nickygoat]

Do you guys know which ports are used by msn and yahoo messenger.
I have a Mac sitting behind a firewall and most of the ports are blocked and i need to find out which ports i need to open
thanks

MSN uses Ports 6891 - 6900. At least according to my Sharing Pref pane.
Don't know about Yahoo.