@gamingonlinux Also, in related news: I'm replacing MailStore Server with Piler Muti-tenant, not because MailStore isn't an excellent product or is failing in any way, but because it runs on Windows and Piler let's me host on Linux.
Also, UPDATE:
The MailStore server had completely died when I came in this morning and I can't even boot from the Windows install media. So now recovering by spinning up a new Windows VM to attach the hard drive to.