Re: [Evolution] Problems with message filtering and automatic expunging

On Fri, 2011-11-25 at 11:10 -0500, Adam Tauno Williams wrote:
On Fri, 2011-11-25 at 11:07 -0430, Patrick O'Callaghan wrote:
On 25 November 2011 09:52, Adam Tauno Williams
<awilliam whitemice org> wrote:
I don't think MOVE is the same as DELETE (although they might be the
same in IMAP protocol terms) - most clients for a MOVE will do a COPY
+ EXPUNGE {id}.  So the message will not appear in the source folder
as deleted, it will just be gone.

Actually Evo uses MOVE+DELETE. Deleted messages remain in place until
expunged, but note that the IMAP EXPUNGE command operates on the
entire folder, i.e. there is no such thing as EXPUNGE{id}. This is
where most other MUAs get it wrong IMHO.

That is incorrect.  If the IMAP server advertises the UIDPLUS extensions
[and, AFAIK, virtually all modern IMAP servers do;  Cyrus does,
Groupwise does] then the client can request to expunge only specific
messages [by message UID, if I recall correctly].

In fact it's UID EXPUNGE, not EXPUNGE, so pedantically speaking you were
wrong and I was incomplete :-).


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