[cobalt-developers] How to restirct incoming mail on Cube

["Outer-Net Support (Nikolas Dafopoulos)" <support@xxxxxxxxxxxxx>]

I am trying to set-up a Cube 3 as a mail server that will reject all
incoming mail by default except those which come from and apporved list of
senders.

In other words, we'd like to be able edit a list of approved addresses on
the Cube.  If mail comes into the server which is from a sender not on the
list it should be rejected.  If the sender is on the list the mail will be
let through to the reciepient.

I have tried doing this with the sendmail access_db, but with no success.
It works with one or two rejected domains and one or two execptions, but not
consitenlty.

I don't want to set up individual mail filters for each user with someting
like procmail, I want a server wide setup so that it will automatically
apply to new users added from the admin interface.

Does anyone have suggestions?

Nikolas Dafopoulos
support@xxxxxxxxxxxxx