On Sat, 2003-08-16 at 21:12, Chateauneuf wrote:
> Environment = RH9. About 4,500 messages received per week. Roaming users
> authenticate with SASL. We cannot use any third party spam solutions
> including RBLs. No dedicated IT administrator.
>
> Just a couple of questions:
>
> 1. Will this solve our problem?
>
> We make extensive use of Regular Expression header and body filters. The
> problem with Postfix is that you cannot white list around these. In
> other words, if you subscribe to a spam newsgroup and there is a thread
> wherein someone says that they are tired of getting all those v'gra
> spams, the whole thread would bounce (including replies).
I had a number of problems with that at one of the locations I oversee.
They were totally intolerant of any changes to the subject line and the
fuzzy area of 4 though to 6 of spam assassin scores were either jokes
(that they really wanted) scoring 6 or clever spam getting 4.
What I did was to set anything over 16 to be rejected with a pleasant
message explaining why (These were all spam anyway so far). Anything
from four upwards I froze using an ACL. We accept only valid email
addresses which bounces a lot of spam and following the first week where
we caught 1000+ spam we are down to about 30 messages frozen a day.
I set up a web page for one of the secretaries to check the messages and
release or reject the messages. We receive just less than your volume
at that location and everyone is much happier.
We can of course whitelist all of the companies we regularly deal with.
Kind regards
Xander
>
> 2. Sometimes it's easier to be a complete nitwit than half a nitwit.
>
> After using another MTA I tend to think in terms of that MTA. Is there
> an FAQ around that might address migration issues; Perhaps just defining
> equivalents to things like access maps, header checks, body checks,
> etc.?
>
> Thanks
>
> --
> Total Quality Management - A Commitment to Excellence
> Email acceptance policy: http://www.TQMcube.com/email_policy.html
>
> --
>
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