Re: problem in connecting to Exchange 2007 - possible solution?

[Simon Josefsson <simon@josefsson.org>]

nathanw@MIT.EDU (Nathan J. Williams) writes:

> Simon Josefsson <simon@josefsson.org> writes:
>
>> We shouldn't apply this so it is enabled by everyone, because it wastes
>> bandwidth (sometimes by a large factor, bandwidth goes from O(1) to O(n)
>> where n is the size of the mailbox...).  Maybe you could rewrite this so
>> that it is only used if some variable is enabled?
>
> Does it? "FETCH *:*" seems to only return one message, the last one,
> which makes sense to me - it's the range of messages from last to
> last. It's not a synonym for "1:*".

Ah, ok, I didn't read carefully.  Still, it seems bad style to send this
to all servers.

Maybe we could have a `imap-dont-send-one-comma-star' variable to toggle
the behaviour, off by default?

If you want, it could be automatically enabled if the server looks like
a exchange server?  Ideally it should set this if the normal command
fails and the 1,*:* approach works, but that might be difficult to do.
Although perhaps, upon login, it could EXAMINE the INBOX and do a FETCH
1,* to check for this, and upon failure test whether 1,*:* works, and if
so, enable the workaround.  It causes some additional round-trips to
open a server, but maybe it is worth it.  Perhaps it could only be done
if the server looks like a exchange server, to avoid slowing down other
servers.

/Simon