>I wonder if someone got this problem.
>A normal user, set up in his Outlook Express account *another* real name (
>ie: George Bush ) and *another* email address ( ie: [EMAIL PROTECTED] ).
>This user, by using this own username/password ( ie: flintstone/PssWrd )
>can, now, send mails like George Bush, and if i see the property of the
>message, it's showing all data related to George Bush, not his *real*
>username/email address ( [EMAIL PROTECTED] ).
>
>How can I avoid that ?
you can't stop any user from using any mail personality in their mail program.
I don't know of any aspect of Imail that can limit users to specific
senders names, and Imail�s filter works only on incoming mail.
But on your IMGate, you can block in smtpd_client_restrictions with the
no_send.map file, which blocks by sender@senderdomain. You users won't be
able to send msgs through IMGate as [EMAIL PROTECTED]
The big drawback is that if sheriff "dead or alive" shrub himself wants to
sent mail to your users, he will be blocked, too.
Len
http://MenAndMice.com/DNS-training
http://BIND8NT.MEIway.com : ISC BIND 8.2.4 for NT4 & W2K
http://IMGate.MEIway.com : Build free, hi-perf, anti-abuse mail gateways
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