disallow freemail

[haji din <ahbh99 () yahoo com>]

hi list,

anybody blocking or having a security policy that
disallow users from using freemail (yahoo, hotmail,
etc)? 

what are security threat that freemail poses to
corporate network?

One threat is that users will be able to download
malicious files, bypassing security measure at a mail
gateway. Any more ideas?

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