On 4 Jan 2019, at 10:36, Stefan Bauer wrote:
Would it be possible to have FILTER as action in policy server
Yes, but FILTER behaves as documented in the access(5) man page. The
first 5 words there describing what FILTER does are critical, but you
should read it all...
(in
recipient_restrictions) and send it to smtp process that uses
header_checks
do have mailroute based on subject?
There can be NO WAY to exempt a message from policy that would apply at
RCPT time with facts that cannot be known until end-of-DATA time.
Postfix cannot modify the basic constraints of non-quantum causality or
the arrow of time or tell SMTP clients to re-order the fixed command
sequence of SMTP.
If you want to make any decisions about a message based on a header, you
must do that with a tool (header_checks, milter, content_filter, or
post-delivery backend) that has access to the message data because it
operates at end-of-DATA or after queueing.
