AirDroid - Access Android phone/tablet from computer remotely and securely. Manage SMS, files, photos and videos, WhatsApp, Line, WeChat and more on computer.
imapsync - Console-based utility for migrating IMAP mailboxes.
Pushbullet - Pushbullet - Your devices working better together
Gmvault - Backup the emails in your Gmail account.
AirMore - AirMore is a cross-platform toolset that can help you manage any Android device wirelessly.
Cryoserver - Cryoserver is an all-in-one email archiving solution that empowers you to preserve your email in a tamper-evident archive, making you transform your data into a useful archive for everyday use.