This is a very simple tool to copy folders from one IMAP server to another server.

Example:

python imapcopy.py imap.googlemail.com:993 [email protected]:password \
mail.example.com "[email protected]:password" \
"[Google Mail]/Alle Nachrichten" DestinationFolder

Usage:

usage: imapcopy.py [-h] [-q] [-v]
               source source-auth destination destination-auth mailboxes
               [mailboxes ...]

positional arguments:
  source            Source host ex. imap.googlemail.com:993
  source-auth       Source host authentication ex. [email protected]:password
  destination       Destination host ex. imap.otherhoster.com:993
  destination-auth  Destination host authentication ex.
                    [email protected]:password
  mailboxes         List of mailboxes alternate between source mailbox and
                    destination mailbox.

optional arguments:
  -h, --help        show this help message and exit
  -c, --create-mailboxes
                    Create the mailboxes on destination
  -q, --quiet       ppsssh... be quiet. (no output)
  -v, --verbose     more output please (debug level)

Only tested on Python 2.7.4.