Hi, sometimes (like now) firstname.lastname@example.org doesn't work. And it's critical for me to do not have downtime. So if i enter email@example.com instead it works when @pbxes.org doesn't work but in case of fail of www3 it'll be another down.
My question is, to reach my external inbound routes what's better?
my account server's hostname (firstname.lastname@example.org)
my account server's ip (email@example.com)
general pbxes.org hostname (firstname.lastname@example.org) (now doesn't work)
general pbxes.com hostname (email@example.com)
Please answer asap cause it's critical.