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Added header filtering for removing sensitive information.

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Philipp Dörfler 2017-09-20 00:05:01 +02:00 committed by GitHub
parent 7c1e153d85
commit 16e31c6a0d
1 changed files with 20 additions and 0 deletions
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20
mail-server/postfix.nix
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@ -97,6 +97,26 @@ in
smtpd_sender_login_maps = "hash:/etc/postfix/vaccounts"; smtpd_sender_login_maps = "hash:/etc/postfix/vaccounts";
smtpd_sender_restrictions = "reject_sender_login_mismatch"; smtpd_sender_restrictions = "reject_sender_login_mismatch";
smtpd_recipient_restrictions = "reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject"; smtpd_recipient_restrictions = "reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject";
cleanup_service_name = "submission-header-cleanup";
};
extraMasterConf = ''
submission-header-cleanup unix n - n - 0 cleanup
-o header_checks=regexp:/etc/postfixsupport/submission_header_cleanup
'';
};
environment.etc = {
"postfixsupport/submission_header_cleanup" = {
text = ''
### Removes sensitive headers from mails handed in via the submission port.
### Thanks to https://thomas-leister.de/mailserver-debian-stretch/
/^Received:/ IGNORE
/^X-Originating-IP:/ IGNORE
/^X-Mailer:/ IGNORE
/^User-Agent:/ IGNORE
'';
}; };
}; };
}; };