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GNU/Linux |
Debian 6.0.3(Squeeze) |
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Mail::SpamAssassin::Message::Metadata(3pm) |
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Mail::SpamAssassin::Message::Metadata − extract metadata from a message
This class is tasked with extracting "metadata" from messages for use as Bayes tokens, fodder for eval tests, or other rules. Metadata is supplemental data inferred from the message, like the examples below.
It is held in two forms:
1. as
name-value pairs of strings, presented in mail header
format. For
example, "X−Language" => "en".
This is the general form for simple
metadata that’s useful as Bayes tokens, can be added
to marked-up
messages using "add_header", etc., such as the
trusted-relay inference
and language detection.
2. as more
complex data structures on the
$msg−>{metadata} object. This
is the form used for metadata like the HTML
parse data, which is stored
there for access by eval rule code. Because it’s not
simple strings,
it’s not added as a Bayes token by default (Bayes
needs simple strings).
new()
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Mail::SpamAssassin::Message::Metadata(3pm) | |