"Superfly" wrote in message
...

Why is it that when I select the IMAP sent folder as the destination for
sent
mail, only sometimes does the mail end up in the folder, and most of the
time, the sent mail just pops back into the IMAP inbox?

That could very well be due to server behavior. Gmail has that tendency, in
my experience.
--
Brian Tillman [MVP-Outlook]