Should DNS be configured with DO or with the Domain Registrar?
My domains are registered with Hover.
It looks like I can configure my DNS details at Hover (with nameserver being DO).
And almost the exact same config options show up in DNS settings for DO.
So, should I be configuring them in one or the other or both? (And why please?)
(Note: In case this detail is needed: I'm trying to set up MX records for a MailServer that will manage email for 4 domains that are set up on a single Droplet via Apache Virtual Hosts. I'm on Ubuntu 14.04.)