The parent poster is correct and it's a good assertion. I'm doing the same thing, even though I'm using Windows as a base operating system, primarily for conven

The parent poster is correct and it's a good assertion. I'm doing the same thing, even though I'm using Windows as a base operating system, primarily for convenience at this point in time. Email is very portable if you keep it in a place you control. You're pretty much just paying for a collection and caching service if you use POP3/IMAP and store your important folders locally. That is portable in a couple of hours between hundreds or thousands of different companies who operate standard protocols. And then there's the possibility of running your own MX with postfix/dovecot etc if you really want.