I have enjoyed learning my own Internet Infrustrature Systsems, from sendmail->courier->all sorts of roll your own and have finally settled on a nice ready made VM called Mail-in-a-Box. It's great for hosting 3-5 of my own domains for all the fancy features like imap/calander/owncloud, and such. It now has Let's Encrypt functionality, however, I do not use it's built in DNS. I run my own nameservers using Bind on a pair of Raspberry Pi's, just cause I can.
This seems to have presented me with Let's Encrypt integration issues, that I believe are readily solvable so that I can participate in the community in an auto-recert fashion as intended by let's encrypt. I thought I would ask the community if anyone is using Mail-In-A-Box already, without using the VM as your DNS server? (Alas, the Mail-in-a-box forums have not been very helpful, though I am still trying)
I was hoping this would be a matter of getting assistance with what my DNS needs to look like so the Let's Encrypt can validate me, But I am betting the Mail-In-A-Box configuration might be getting in the way because it believes it can tweak and change DNS how it sees fit for each domain it's hosts...
But since I DO have admin rights to the Ubuntu load under the hood, maybe I can get automation anyway?