IMAP Backup Tool
http://github.com/mleonhard/imapbackup
http://tamale.net/imapbackup/

This program incrementally backs up IMAP folders to local mbox
files. New messages are appended to the folder's mbox file.


= Features =

* Downloads all IMAP folders
* Stores messages in mbox, mbox.gz, or mbox.bz2
* Each folder downloads to its own mbox file, eg. Inbox.Drafts.mbox
* Downloads only new messages, appends them to the mbox file
* IMAP4 SSL, supporting client and server certificates
* Accesses IMAP account in read-only mode. Does not affect message 'seen' status.


= Usage =

Usage: imapbackup [OPTIONS] -s HOST -u USERNAME [-p PASSWORD]
 -a --append-to-mboxes     Append new messages to mbox files. (default)
 -y --yes-overwrite-mboxes Overwite existing mbox files instead of appending.
 -n --compress=none        Use one plain mbox file for each folder. (default)
 -z --compress=gzip        Use mbox.gz files.  Appending may be very slow.
 -b --compress=bzip2       Use mbox.bz2 files. Appending not supported: use -y.
 -f --=folder              Specifify which folders use.  Comma separated list.
 -e --ssl                  Use SSL.  Port defaults to 993.
 -k KEY --key=KEY          PEM private key file for SSL.  Specify cert, too.
 -c CERT --cert=CERT       PEM certificate chain for SSL.  Specify key, too.
                           Python's SSL module doesn't check the cert chain.
 -s HOST --server=HOST     Address of server, port optional, eg. mail.com:143
 -u USER --user=USER       Username to log into server
 -p PASS --pass=PASS       Prompts for password if not specified.

NOTE: mbox files are created in the current working directory.


= Example =

$ python imapbackup.py -s shevek.tamale.net -u michael -e -f INBOX
Password:
Connecting to 'shevek.tamale.net' TCP port 993, SSL
Logging in as 'michael'
Finding Folders: 67 folders
Folder INBOX: 1231 messages
File INBOX.mbox /
WARNING: Message #117 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox -
WARNING: Message #269 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox -
WARNING: Message #498 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox /
WARNING: Message #609 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox |
WARNING: Message #976 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox -
WARNING: Message #1042 in INBOX.mbox has a malformed Message-Id header.
File INBOX.mbox: 1230 messages
Downloading 1 new messages to INBOX.mbox: 1.89 KB total, 1.89 KB for largest message
Disconnecting
$


= Compatibility =

Python 2.5.  May work on Python 2.4 with minor tweaks.


= Changes =

2009-12-12 v1.4c
* Use hashlib module instead of deprecated sha module - Ronan Sheth
* Added --folders argument - Giuseppe Scrivano
* imapbackup disappeared from Rui Carmo's site.  This version found at:
  https://gist.github.com/raw/273418/fe7c59f69ba57c40dde8c8c33d6105f46f458df8/imapbackup.py
2008-12-08 v1.4b
* Fetch with BODY.PEEK instead of BODY, to avoid marking Gmail messages as
  read - Brandon Long (Gmail team)
2007-05-28 v1.4a
* SSL support! Can use a private key file and server certificate chain file.
  Unfortunately, Python's ssl module doesn't check the certificate chain. This
  needs to be fixed.
* You can now specify the port number as part of the server name. Example:
  imapbackup.py -u user -s mail.com:1234
* Cleaned up code. Used pylint to find code that didn't comply with best
   practices.
2007-05-27 v1.3b
* Fixed bug in error message printout.
2007-05-26 v1.3a
* Better support for result of LIST command. Fixes the problem of some folders
  not getting backed up from Courier IMAPd
* Improved usage printout, made parameters more consistent.
* Added support for socket._fileobject.recv bugfix on Windows
2007-03-27 v1.2e
* By Rui Carmo.  Downloaded from:
  http://the.taoofmac.com/space/Projects/imapbackup
  http://web.archive.org/web/20071011040436/http://the.taoofmac.com/space/Projects/imapbackup