In ,
Zick typed:
We have a brand new Exchange 2003 environment. In Outlook 2003, any
user can go to the "From" field and enter anyone form the Global
address list in there, and they can send emails as anyone else. No
delegations has been set yet. This is a security concern and I was
wondering how to prevent that from happening. We'd like everyone to
be be able to send as themselves only, unless they've been
specificallly given the permissions.


See replies in the Exchange group you also posted to (which is actually the
better group for this, as it isn't an Outlook issue). Please don't
multipost - if you need to post to multiple groups, it's best to crosspost
instead, by posting a single message to a handful of relevant groups
(separate the NG names with commas) so that everyone can follow the thread.
Thanks :-)

See http://www.blakjak.demon.co.uk/mul_crss.htm