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#
# Header checks policy for mails going through the submission service
#
# See header_checks(5)
#
# Usage:
# 1. In "master.cf" set option "cleanup_service_name=subcleanup" for
# "submission" service;
# 2. set option "header_checks" for "subcleanup" service.
#
# Credits:
# * Anonymize headers in Postfix
# https://www.void.gr/kargig/blog/2013/11/24/anonymize-headers-in-postfix/
# * Remove sensitive information from email headers with Postfix
# https://major.io/2013/04/14/remove-sensitive-information-from-email-headers-with-postfix/
#
#
# Aaron LI
# 2017-04-21
#
#
# Strip sensitive information for outgoing mails
#
# NOTE:
# * Pattern maching is case insensitive.
# * First matched line will be modified.
#
#/^\s*Received:.*\(Authenticated sender:/ IGNORE
/^\s*(Received: from)[^\n]*(.*)/ REPLACE $1 [127.0.0.1] (localhost [127.0.0.1])$2
/^\s*User-Agent/ IGNORE
/^\s*X-Enigmail/ IGNORE
/^\s*X-Forward/ IGNORE
/^\s*X-Mailer/ IGNORE
/^\s*X-Originating-IP/ IGNORE
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