Geoff Shang skrev den 2013-04-11 16:33:
Hi,
I'm trying to strip Received: headers from mail at various parts of
our processing, for security reasons.
I'm starting with mail that comes in from authenticated clients. I
tried doing the following:
master.cf:
submission inet n - - - - smtpd
-o smtpd_enforce_tls=yes
-o smtpd_sasl_auth_enable=yes
-o smtpd_client_restrictions=permit_sasl_authenticated,reject
-o milter_macro_daemon_name=ORIGINATING
-o header_checks=pcre:/etc/postfix/header_checks
header_checks is incomming on smtpd, but you use submission
so you must change to to smtp_header_checks
http://www.postfix.org/header_checks.5.html
/etc/postfix/header_checks:
/^Received:/ IGNORE
this one is to gready, dont use it on header_checks
I ran this through Postmap with a query from a message I sent myself,
and the IGNORE key is correctly returned. But if I actually send
myself a message, it comes through with the Received: line intact.
I did some searching and found
http://marc.info/?l=postfix-users&m=122106227124195&w=2
I'm curious to know why this would work and the above wouldn't. Am I
just trying to do it too early in the process?
A related question, is it possible to prevent Postfix from generating
lines like this?
what problems do you like to resolve ?
Geoff.
--
senders that put my email into body content will deliver it to my own
trashcan, so if you like to get reply, dont do it
