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All our internal machine generated emails are sent through our Postfix
server (which is only used for outbound mail), and then relayed out to a
third party MTA. To be able to integrate all outbound mail to other
services (like CRM), we are adding a few headers (customer number etc) to
the mail that is delivered to Postfix.
What I'm trying to achieve is for Postfix to deliver a copy to a local IMAP
account, and then remove our internal/private headers before passing the
mail on to the relay host. The idea is for some custom software to read the
copy from the IMAP account, using the interal/private headers for
integration with other systems.
Delivering a copy of all mail is easy using the always_bcc option, but
adding header_checks, with an IGNORE instruction for our internal headers,
removes the headers _before_ the local copy is delivered. In other words:
The headers are removed from both our bcc-copy and the one forwarded to the
I understand this is because the cleanup is done before the delivery, but I
don't see how I can configure this to achieve the result I need.
Any tips is highly appreciated. :)
-- Lars Preben Sørsdahl lars.preben.no