Already I feel part of the community thanks to you and herbert thielen and mike mcgiver answering my newbie question -- so fast and polite!
I'm aiming to create a realm for my town (Port Townsend Washington, near Seattle). Working on getting the verification mail to work, it's not being sent yet... hmm, just changed the mx for the site from forwarding. May get it done. Meanwhile the "from" address is wrong .... from=<www-data@hypergrove> .... I think it should be from=<????@611cedar98339.com> but not sure what the ???? ought to be. Let me know of a hint to fix this if you can. I'm not an email server guy at all, as I'm more a database and ontology guy, with deep experience creating semanticmediawiki applications. I hope to bring this experience to Hubzilla, to help make the codebase even more amazing. Thanks for listening!