Postfix header check to reject certain senders

Scott Silva ssilva at sgvwater.com
Wed Jul 18 00:04:41 IST 2007


Glenn Steen spake the following on 7/17/2007 3:21 PM:
> On 17/07/07, Scott Silva <ssilva at sgvwater.com> wrote:
>> Glenn Steen spake the following on 7/17/2007 4:55 AM:
>> > On 17/07/07, Gareth <list-mailscanner at linguaphone.com> wrote:
>> >> A bit off topic but you are normally a friendly bunch :)
>> >>
>> >> I am trying to get postfix () to reject mail from certain senders
>> rather
>> >> than accept and then delete it in mailscanner.
>> >>
>> >> One such mail has the following in the headers:-
>> >> From: root at adsl.linguaphone.com
>> >> To: root at adsl.linguaphone.com
>> >> Subject: adsl.linguaphone.com security run output
>> >>
>> >> I have my postfix header checks set to use regexp matching and the
>> file
>> >> contains :-
>> >>
>> >> /^From:.*\@adsl\.linguaphone\,com/                      REJECT Sender
>> >> address blacklisted.
>> >> /^Received:/ HOLD
>> >>
>> >> The problem is that the mail I am trying to block is not being
>> rejected.
>> >> All mail is being put in the hold queue and Mailscanner working
>> >> correctly so header checks are working.
>> >> Have I done something wrong with the syntax?
>> >>
>> > Look at rejecting the _envelope_ sender instead. That From: is
>> > probably spoofed to high heaven:-).
>> >
>> > Also, this should be done in the access map instead.
>> > ... Then again, I'm on vacation, so the brain might be sligtly turned
>> > off (more than usual, that is:-).
>> >
>> > Cheers
>> You sure get a lot of vacation! Have you been completely free of work,
>> or have
>> you been "tapped" a few times by the PHB's?
>>
>>
> <Wildly OT>
> Three weeks might be considered much by some, I guess.... I usually
> try to get four each summer, but due to the SE asia trip this spring
> .... three was all I could get out of the PHB:-):-)
> 
> Been "tapped" by the PHB, a retiring DBA, a few programmers some
> windoze admins and some few users(!)... That and the raining and the
> usual repairs on the house (painting the awnings (I think that's the
> right word for that particular part of the roof:-)... A lot of
> climbing around, which isn't as easy as it used to be:-)... Not much
> of a vacation....:-).
> VPN is the death of relaxation and recreation.... You know how it is.
> </Wildly OT>
> 
> Cheers
Here's to what you have left!

Cheers!! ;-D


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