* message/rfc822 and other message/* attachments
@ 2020-04-20 9:20 Eric Wong
0 siblings, 0 replies; only message in thread
From: Eric Wong @ 2020-04-20 9:20 UTC (permalink / raw)
To: meta
message/rfc822 is an attachment where another email message is
attached as-is, and that attached RFC822 message may have
attachments of its own (just like normal MIME containers).
Email::MIME doesn't descend into them (but gmime and notmuch do).
I started working on them manually in msg_iter(), but some
things need to be considered:
* current URLs to existing message/* attachments MUST NOT break
* Message-IDs, From, To, Cc, Subject, not-quoted, quoted,
diff-specific stuff in attached messages should
be indexed and searchable from Xapian, at least
* Date: searchability... probably not? We already fail at
odd messages having multiple Date headers...
* References and threading could be tricky. Can probably
be ignored in attachments, though References/In-Reply-To
could probably be indexed via Xapian...
* content-based checksumming + deduplication could be
subverted due to version mismatches, but it may not
matter in practice.
...
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