We have a VPS hosting a few of dozen sites at
server.example.com. We're deploying 3 more VPSs this week to cope with growth & want to change our naming structure.
If we change the hostname of our current server, is there a way we can set an alias (like a CNAME) so that we don't have to change the config of every device that connects to us for mail services? Currently almost 80 devices.