Postfix header check to reject certain senders

[Glenn Steen]

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
-- 
-- Glenn
email: glenn < dot > steen < at > gmail < dot > com
work: glenn < dot > steen < at > ap1 < dot > se