Sure it will in your situation...but when you have more than one client going after the mailbox, they'll step on each other's work n vanilla Dovecot. And in this case there are at least 2 and as many as 4 or 5 mail clients all open at the same time going after an mbox format inbox. We originally had some Unpleasantness with the unsupported BB users where they left their BBs on at home and came to work and found that they would delete stuff and that it would then come back (their Macs were set to make deleted stuff disappear from the list but not be expunged until they did that....and when the BB popped up from its 5 minute nap and checked the mailbox, it would break the lock and invalidate the work). Those user now do an atomic delete with immediate expunge. And their use was simple compared to the CFO's...would you believe one of his 3 secretaries uses the Trash folder as a secondary storage area? <shudder> And cannot be talked out of it?
A large part of the time she has Pegasus running on her desktop too and we've not seen any of these problems.
I don't know of any IMAP apps to get for a BB but if you come across a good one, please post a note here.
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Knute Johnson Molon Labe...