Three-way match headache

[Philip Hachey]

Assuming Perl regexp "extended patterns" (I haven't tried) can be used,
consider the following two lines in the order presented:

From: user at domain     andFrom: /^(?!ip\.ad\.dr\.es)$/     no
From: user at domain     andTo: otherdomain                 yes

The regular expression in the first line basically says to act "no" if
the message is from user at domain but NOT from the specified IP address.

Good luck.



Chuck Foster <chuck.foster at STREAMSHIELD.COM>
Sent by: MailScanner mailing list <MAILSCANNER at JISCMAIL.AC.UK>

2005-07-27 07:16
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        To:        MAILSCANNER at JISCMAIL.AC.UK
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        Subject:        Three-way match headache


Hi,

I have a scenario whereby we are now looking at customers being able to
configure per-user rules, but this has thrown up a headache in how to
handle some potential rules for outgoing messages.

Taking sender notification, for example, in the old, per-domain only
environment it was enough to simply set something like:

                From:                 ip.ad.dr.es and From: domain      
          yes

but now we effectively need something like:

                From: ip.ad.dr.es and From: user at domain and To:
otherdomain
yes

which from what I can tell isn't possible in MailScanner, as it doesn't
handle three conditions as yet anyway, you can't do multiple lines with
a 'continue' like statement, and can't call another ruleset within the
existing one (which would have been quite useful in this context
actually).

Any thoughts?

C:>


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