How to block Yahoo and MSN messenger using ISA Server 2004 Enterprise Edition?

Posted on 2007-08-07
Last Modified: 2013-11-05
How to block MSN and Yahoo messenger in a domain using ISA server 2004 Enterprise edition.? The way Microsoft describe to block i tried butt it didnt work.
Question by:aqesa_it
    LVL 6

    Accepted Solution

    you can block it using the application header signiture
    LVL 6

    Assisted Solution

    Even if you block it with the header signature clients can still access msn and yahoo messenger through their mail websites.  You will have to create a url block as well.

    Check out this for additional info:
    LVL 1

    Expert Comment

    Forced accept.

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