Symptoms:

Conditions
Some IM clients perform authentication to certain domains using services accessed via SSL. This SSL traffic is HTTP traffic. For the specified domains, it is required that the IM client have HTTP access via SSL either directly or through a web proxy.

Solution:
The following table lists the IM clients and the domain names to which the IM clients must be permitted HTTP access via SSL:

IM Clients	Domain Names
MSN Messenger Windows Live Messenger Windows Messenger	login.live.com contacts.hotmail.com
AIM Pro, 6.5, 6.8 Beta	aimpro.premiumservices.aol.com
Yahoo 8.1 and 9.0	login.yahoo.com
Google Talk	www.google.com www.l.google.com

For further information, please see the IM Manager implementation guide.

References:
MSN IM Client 8.X Cannot Log in with Error Message: "You cannot use Windows Live Messenger at this time because your contact list is not available"
Yahoo Client Fails to Login: Error 81003002

Document ID: 2007724950194498
Last Modified: 07/15/2009
Date Created: 11/25/2006
Product(s): IM Manager
Release(s): IM Manager 2007 8.3, IM Manager 7.5, IM Manager 8, IM Manager 8.1, IM Manager 8.2, IM Manager 8.4