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Subject: IMAP extra headers (was: IMAP server hierarchy as topics)
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Chris> Chris J. Richards <URL:mailto:cjr@netpliance.net>

0> In article <6e66vq4hcb.fsf@sloth.netpliance.net>, Chris wrote:

Chris> From my cursory glance, it doesn't seem that the IMAP messages
Chris> have X-Gnus-* and Xref.

ISTR this is because you can't edit articles on IMAP backends.  Perhaps
it's possible to store these extra headers as IMAP properties, and
insert them into the article buffer at retrieval time?

This approach would be helpful in reading MS Exchange's calendar/contact
items, as was requested recently - without having to imbue Gnus with
knowledge of IMAP's annotations.  Simply have the fetch function write
these properties into X-headers, then user code can operate on them
(and they work even when the article is copied to other backends!).