[EMAIL PROTECTED] (Praveen Kannan) [Saturday, August 10, 2002 1:05 AM]:
> I am running a local relay for ppl in my network. I have a doubt. If I
> want to put up a restriction such that "only" ppl with a From: of
> xyz.com can relay mail and all other addresses should be rejected,
Allow access only from 127.0.0.1 - and force users to use a webmail client.
Or set up something like Lotus Notes internally (I think you already have that
in place) and have only the IP of that notes box allowed to relay through your
postfix. The Notes client is already quite well crippled, and it is pretty
easy to cripple it even more :)
Or rewrite all outbound mail's envelope senders to [EMAIL PROTECTED] (if you
force your users to use smtp auth, you can get the user's ID quite easily).
Configurations have been posted multiple times on postfix-users for this I
believe ...
Anyway the best way to go would be to have this server only for outbound mail.
Don't have it for inbound as well - will run into lots of problems.
--srs
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