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From: Simon Josefsson <jas@extundo.com>
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Subject: Re: nnimap slowness
Date: Mon, 31 Mar 2003 14:30:24 +0200
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David Abrahams <dave@boost-consulting.com> writes:

>> It seems the IMAP SEARCH command is causing the delay (most of the
>> nnimap related delay is in imap-search), suggesting that the server
>> opens large messages when the SEARCH command is invoked.  This is
>> unnecessary, since Gnus only searches for flags (unseen, seen, ticked,
>> etc).  Perhaps you could forward this observation (after verifying it
>> in the source) 
>
> The source of what?

Of the server.  Assuming you have it, of course.

>> to the IMAP server administrator/developers to have them improve
>> searches for flags.
>
> We're using Communigate Pro, for what that's worth to you.

I guess it doesn't come with source.  I recall the same problem was
identified quite some time ago, but perhaps it was never reported
upstream.  Asking the vendor to optimize the SEARCH commands for flags
is probably the only practical solution then.