KLS Mail Backup is a straightforward app that permits the backup and restoration of most of the popular email clients, including Mozilla Firefox, Thunderbird, Windows Mail, Outlook Express, among others.
It allows efficient backup to local, network drives, Amazon S3, WebDAV, and FTP server, and it also permits standard Zip and 7z compression as well as full and incremental backup modes with easy restoration for those profile files. KLS Mail Backup additionally includes an integrated email viewer.
KLS Mail Backup's UI is very user-friendly and will have any skill level user performing a backup within minutes of installation. A nicely done free for personal use mail backup tool.
KLS Mail Backup Features:
Mozilla Thunderbird, Firefox and Seamonkey profiles
Windows Live Mail profile and Windows Live Contacts