245449my question for nested_header_checks
- Oct 30, 2008Hi folks,
Sorry in advance if it's well known matter.
I have some troubles about nested_header_checks in main.cf of postfix.
- OS Solaris10sparc
- postfix mail_version = 2.4.6
% postconf header_checks
header_checks = regexp:/etc/postfix/header_checks
% postconf nested_header_checks
nested_header_checks = regexp:/etc/postfix/backscatter_checks
% postconf mime_header_checks
mime_header_checks = regexp:/etc/postfix/backscatter_checks
% cat backscatter_checks
/^From: +([^<]+)?<foo@example\.com>$/ REDIRECT spamhunter@...
/^Return-path: +<(foo|bar|hoge|fuga)@example\.com>$/ REDIRECT spamhunter@...
/^Subject: +Majordomo +results:/ REDIRECT spamhunter@...
It's rules against backscatters.
In other times, I tried more complicated rules using [if.. (nest nest ...) .. endif ], but there was something wrong, so I decided to make more simple rules at first, then I wrote above rules.
But some mails which should be caught by nested_header_checks or mime_header_checks can't help but go through my filter for some reason.
And I don't know why..
However, I found a difference between mails which my filter could catch and mails which my filter couldn't.
It is the difference whether attached mail has body or not(header only).
This is nested_header_checks' feature, right?
When I use body_checks, there is no probrem.
But it might cause unintended matching.
Any information would be appreciated.
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