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mailcow-dockerized/data/conf/postfix/anonymize_headers.pcre
Kristian Feldsam 100e8ab00d [Postfix] Do not remove X-Mailer header
some providers, like seznam.cz use X-Mailer in DKIM signatures

Signed-off-by: Kristian Feldsam <feldsam@gmail.com>
2023-12-27 16:32:50 +01:00

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if /^\s*Received:.*Authenticated sender.*\(Postcow\)/
#/^Received: from .*? \([\w-.]* \[.*?\]\)\s+\(Authenticated sender: (.+)\)\s+by.+\(Postcow\) with (E?SMTPS?A?) id ([A-F0-9]+).+;.*?/
/^Received: from .*? \([\w-.]* \[.*?\]\)(.*|\n.*)\(Authenticated sender: (.+)\)\s+by.+\(Postcow\) with (.*)/
REPLACE Received: from [127.0.0.1] (localhost [127.0.0.1]) by localhost (Mailerdaemon) with $3
endif
if /^\s*Received: from.* \(.*dovecot-mailcow.*mailcow-network.*\).*\(Postcow\)/
/^Received: from.* (.*|\n.*)\((.+) (.+)\)\s+by (.+) \(Postcow\) with (.*)/
REPLACE Received: from sieve (sieve $3) by $4 (Postcow) with $5
endif
if /^\s*Received: from.* \(.*rspamd-mailcow.*mailcow-network.*\).*\(Postcow\)/
/^Received: from.* (.*|\n.*)\((.+) (.+)\)\s+by (.+) \(Postcow\) with (.*)/
REPLACE Received: from rspamd (rspamd $3) by $4 (Postcow) with $5
endif
/^\s*X-Enigmail/ IGNORE
# Not removing Mailer by default, might be signed
#/^\s*X-Mailer/ IGNORE
/^\s*X-Originating-IP/ IGNORE
/^\s*X-Forward/ IGNORE
# Not removing UA by default, might be signed
#/^\s*User-Agent/ IGNORE