2009/8/12  <[email protected]>:
> Hi all!
>
> I expierence problem with building regexp rules in header_checks. All I need
> is to reject email coming from [email protected] to [email protected].
> How can I issue such excact rule?

It's not possible with header_checks. header_checks works on each
header independently, so you cannot combine the results of multiple
headers.

You may be able to use some of the techniques mentioned here:
http://www.postfix.org/RESTRICTION_CLASS_README.html
An alternative is to use a policy service:
http://www.postfix.org/SMTPD_POLICY_README.html

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