I’ve been running my own mail server for years now, started off with the default mail server in Windows Server 2003, but quikcly moved to Exchange 2010 > 2013 and now I’m still on 2016. However, I really want to go open source. And fast, since my Exchange 2016 server has been compromised, and is sending out spam, I really want to move on to a clean server.
I can obviously upgrade to a newer Exchange version, and migrate everything, or even just setup a new 2016 server, and migrate everything, to get rid of my spam issues. However, I think it’s better to go with a proper open source solution, like mail-in-a-box, I hear and read a lot of good things about it.
However, I can’t really figure out if there is a way to migrate my Exchange 2016 mailboxes to mail-in-a-box. Can somebody tell me if this is possible?