1Mail::SpamAssassin::MesUssaegre:C:oMnettraidbauttae(d3M)Paeirll::DSopcaummAesnstaastsiionn::Message::Metadata(3)
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6 Mail::SpamAssassin::Message::Metadata - extract metadata from a message
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10 This class is tasked with extracting "metadata" from messages for use
11 as Bayes tokens, fodder for eval tests, or other rules. Metadata is
12 supplemental data inferred from the message, like the examples below.
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14 It is held in two forms:
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16 1. as name-value pairs of strings, presented in mail header format.
17 For
18 example, "X-Language" => "en". This is the general form for simple
19 metadata that's useful as Bayes tokens, can be added to marked-up
20 messages using "add_header", etc., such as the trusted-relay inferā
21 ence
22 and language detection.
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24 2. as more complex data structures on the $msg->{metadata} object.
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26 is the form used for metadata like the HTML parse data, which is
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28 there for access by eval rule code. Because it's not simple
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30 it's not added as a Bayes token by default (Bayes needs simple
31 strings).
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34 new()
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38perl v5.8.8 2008-M0a1i-l0:5:SpamAssassin::Message::Metadata(3)