[Akonadi] [Bug 327894] Kmail can not delete emails (imap). Emails are downloaded again after removal.

[cluebat]

https://bugs.kde.org/show_bug.cgi?id=327894

--- Comment #19 from cluebat <cluebat at mailinator.com> ---
It's been quite some time since I looked at the RFC and perhaps got some parts
crossed with what is done for mobile devices (phones) where any loss of the TCP
session triggers a reconnect and fetch of new messages. In that context, the
device wants to be as idle as possible for powersaving reasons so it doesn't
want to have a live session with traffic as it has to wake up to some extent
any time there is data to process. After the connect and fetch, the mobile
device will idle the connection and expects no data transfer until the user
initiates an action. If the server has something new, it just closes the
session and the mobile device will then fetch new data upon reconnect. If the
TCP session drops for any other reason, the device reconnects and attempts to
fetch new data just the same. That is an elegantly simple solution which relies
on a single connection for everything.

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