Mail::SpamAssassin::Plugin::MIMEHeader - perform regexp tests against MIME headers

NAME  SYNOPSIS  DESCRIPTION  RULE DEFINITIONS AND PRIVILEGED SETTINGS 

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NAME

MIMEHeader − perform regexp tests against MIME headers

SYNOPSIS

loadplugin Mail::SpamAssassin::Plugin::MIMEHeader
mimeheader NAME_OF_RULE Content−Id =˜ /foo/

DESCRIPTION

This plugin allows regexp rules to be written against MIME headers in the message.

RULE DEFINITIONS AND PRIVILEGED SETTINGS

mimeheader NAME_OF_RULE Header−Name =˜ /pattern/modifiers

Specify a rule. "NAME_OF_RULE" is the name of the rule to be used, "Header−Name" is the name of the MIME header to check, and "/pattern/modifiers" is the Perl regular expression to match against this.

Note that in a message of multiple parts, each header will be checked against the pattern separately. In other words, if multiple parts have a 'Content−Type' header, each header's value will be tested individually as a separate string.

Header names are considered case−insensitive.

The header values are normally cleaned up a little; for example, whitespace around the newline character in "folded" headers will be replaced with a single space. Append ":raw" to the header name to retrieve the raw, undecoded value, including pristine whitespace, instead.

tflags NAME_OF_RULE range=x−y

Match only from specific MIME parts, indexed in the order they are parsed. Part 1 = main message headers. Part 2 = next part etc.

range=1 (match only main headers, not any subparts)
range=2− (match any subparts, but not the main headers)
range=−3 (match only first three parts, including main headers)
range=2−3 (match only first two subparts)

tflags NAME_OF_RULE concat

Concatenate all headers from all mime parts (possible range applied) into a single string for matching. This allows matching headers across multiple parts with single regex. Normally pattern is tested individually for different mime parts.

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