Gmail, Duplicate Messages, All Mail and deletion problem

[Tomasz Żok]

Dear Geoff,

On 05/07/13 at 03:12pm, Geoffrey Ferrari wrote:
> 1) What is the correct way to delete messages from the All Mail folder?
> Should I just delete the local file in the All Mail folder? Move the local
> file to the Bin folder? Leave the original local file in All but copy it to
> the Bin folder? Something else?

Quote from https://support.google.com/mail/answer/78892?hl=en
    Do not save deleted messages to your [Gmail]/All Mail folder as some
    clients will try to empty this folder and ultimately fail.

IIRC, When you use OfflineIMAP and delete from local folder synced to
[Gmail]/All Mail, this is the equivalent of the situation described by
support.google.com -> it does not work due to how Gmail treats All Mail.

You should delete the message in [Gmail]/INBOX, then after synchronization it
will be propagated and the message will disappear in [Gmail]/All Mail as well.

Regards,
Tomasz