PhilsWiki

Old. Only supports python2. Works for less secure email servers.

• how to
• Github: IMAP Backup

For syncing IMAP to IMAP only.

• Authors Website
• Github
• v2.140 Release

sudo apt-get install \
  libencode-imaputf7-perl \
  libfile-copy-recursive-perl \
  libio-socket-inet6-perl \
  libio-tee-perl \
  libmail-imapclient-perl \
  libunicode-string-perl \
  libsys-meminfo-perl \
  libregexp-common-perl \
  libfile-tail-perl

IMAP to local.

• offlineimap.org
• Github
• v7.3.3 Release

apt-get install offlineimap

• https://github.com/OfflineIMAP/offlineimap/blob/master/offlineimap.conf

1. Enable Gmail API
2. Create Oauth2 Credentials. You'll get a clientid and clientsecret which you'll need to put into ~/.offlineimaprc and use in the oauth2.py
3. Clone google/gmail-oauth2-tools and use the script in python/oauth2.py.

4. #!/bin/bash
   
   d="$HOME/Mail/gmail-oauth2-tools/python"
   
   clientid='<id>.apps.googleusercontent.com'
   clientsecret='<secrect>'
   
   ${d}/oauth2.py \
     --generate_oauth2_token \
     --client_id=${clientid} \
     --client_secret=${clientsecret}

5. Running this script will open a web browser. Login with the gmail account you wish to sync. It will provide a Refresh and Access token. Copy both into ~/.offlineimaprc

Also works with a google apps account with a custom domain.

[general]
accounts = user@gmail.com

[Account user@gmail.com]
localrepository = user@gmail.com-local
remoterepository = user@gmail.com-remote

[Repository user@gmail.com-local]
type = Maildir
localfolders = ~/Mail/user@gmail.com

[Repository user@gmail.com-remote]
type = IMAP
remotehost = imap.gmail.com
remoteuser = user@gmail.com
ssl = yes
sslcacertfile = /etc/ssl/certs/ca-certificates.crt
auth_mechanisms = XOAUTH2
oauth2_client_id = 
oauth2_client_secret = 
oauth2_access_token = 
oauth2_request_url = https://accounts.google.com/o/oauth2/token
oauth2_refresh_token = 

https://console.cloud.google.com/apis/api/gmail.googleapis.com/credentials