Notify Senders Ruleset
kevins at BMRB.CO.UK
Fri Aug 5 21:52:58 IST 2005
On Fri, 2005-08-05 at 15:38 -0500, Bill Glick wrote:
> >>> # Match user at ncsa.uiuc.edu as well as user at sub.ncsa.uiuc.edu
> >>> From: /[\@\.]ncsa\.uiuc\.edu$/ yes
> >>> From: *@*.ncsa.uiuc.edu yes
> >>> FromOrTo: default no
I can't see why this doesn't work, but one observation...
This matches the envelope sender so are you sure that the envelope
sender on the messages being notified is not set to one of your domains
( a fairly common trick by spammers and viruses).
If possible its best to base rules for this on your internal IP ranges
rather than on address, so that your users don't get notified on
incoming viruses which are spoofing their address as sender. I notify
senders for all rfc1918 private address ranges as I can be sure that
covers all bases within our network (things are changing regularly!) but
we'll never receive an incoming (external) message from those IP ranges.
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