Tiny PXE Server - Small portable standalone PXE server (dhcp+tftp+http)
imapsync - Console-based utility for migrating IMAP mailboxes.
ERPXE - ERPXE project simplifies the process of installing and customizing a Multi-Boot PXE server.
Gmvault - Backup the emails in your Gmail account.
Serva 32/64 - Serva is an Automated PXE Server Solution Accelerator based on an all-in-one portable multi-server engine
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.