Hi, sometimes (like now) email@example.com doesn't work. And it's critical for me to do not have downtime. So if i enter firstname.lastname@example.org 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 (email@example.com)
my account server's ip (firstname.lastname@example.org)
general pbxes.org hostname (email@example.com) (now doesn't work)
general pbxes.com hostname (firstname.lastname@example.org)
Please answer asap cause it's critical.