212214Re: header_checks or maildrop?
- Jan 1, 2007On Monday, January 01, 2007 at 17:52 CET,
Crayon <crayon.shin.chan.uk@...> wrote:
> I'm new to postfix (having used qmail for several years). In my oldNope.
> setup I had maildrop rules that are run on addresses which I use to
> receive mailing lists. So for example, for an address that is used
> solely for receiving this list, the maildrop rules would check for
> the presence of these headers:
> Sender: owner-postfix-users@...
> Precedence: bulk
> List-Post: <mailto:postfix-users@...>
> List-Help: <http://www.postfix.org/lists.html>
> List-Unsubscribe: <mailto:majordomo@...>
> List-Subscribe: <mailto:majordomo@...>
> If the check fails the mail is unlikely to have come from the list and
> is most likely spam (or a direct reply from someone on the list -
> which I don't want) and gets rejected.
> What I would like to know is, can something similar be implemented
> using postfix's header_checks?
> My reading of the docs suggests it can't be done because postfix onlyCorrect. Also, you can only place conditions on the existence of a
> processes a single header at a time and makes a decision per header.
particular header, not on the inexistence of a header.
> Another thing is I would like to reject mails don't have a "Subject:"You can check for an empty Subject: header, but not the lack of one.
> header (or it is empty). Again, because of the way the header_checks
> are done I don't think I can check for the absence of a particular
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