Thanks for the explanation.  Is there a way to determine what behavior 
to expect?
How would you reliably monitor mail (what's new and who's it from, what 
flags changed
and what got expunged) without permanently affecting the Seen flag? Or 
does that
not have a simple answer?

        brian

On Wednesday, September 25, 2002, at 03:39 PM, Mark Crispin wrote:

> If a server does not normally announce new mail messages with EXAMINE 
> it
> probably not do so just because you use the IDLE command.
>
> The entire reason why a server might not announce new mail messages 
> with
> EXAMINE is if the underlying mail store requires an exclusive lock in 
> order to
> read.  If the server does not want a read-only session to prevent 
> another
> read-write session, then it must release the exclusive lock after 
> obtaining a
> snapshot of the mailbox.  Having done so, it has no reasonable way to 
> observe
> new mail.
>
> More modern mail stores have separate shared and exclusive locking, so 
> this
> problem does not happen with these.
>
>
>

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