#
# 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