Hyper-V - Install Hyper-V on Windows 10
imapsync - Console-based utility for migrating IMAP mailboxes.
vSphere - Get started with VMware vSphere editions, the world’s leading server virtualization platform and the best foundation for your apps, your cloud, and your business.
Gmvault - Backup the emails in your Gmail account.
Azure Virtual Machines - Build Linux and Windows virtual machines (VMs) and save up to 80 percent with Azure Reserved Virtual Machine Instances and Azure Hybrid Benefit for Windows Server.
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.