I’m asking this because one time, while browsing the GNU website, I noticed that some of the members’ emails had “gmail” on them!! And I asked myself how would that be possible?? And I think other members of the FSF had Gmail too. Why? Richard Stallman is against Gmail, so why would those memberse use it?? Would that mean I can use non-free software while advocating and loving free/libre software??
Ah that’s still totally possible, I do that.
The domain isn’t all that important, the IP address of the mail server is. I pay an external service that provides a mail server, and my DNS records point to that.
But hosting my own mail server, while possible is not recommended.