Mail::SpamAssassin::Plugin::MIMEHeader (3)

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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 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.