Question : Two IPs on the same dot com

I have mx records that point two different dot coms to two different IP addresses with a priority of five each.  When my primary internet goes down, we still get email because it routes through the backup.


This works, however, all the android, windows phones, and iphones quit getting email because they are pointed to

Can I make resolve to a different address when my primary internet fails?  I thought of round robin but I don't want the backup to be used unless necessary.  It's less then 1/5th the speed of the primary and we use it for cisco phone traffic and 3rd party software through a vpn tunnel.


Answer : Two IPs on the same dot com

Not in DNS unless you actively change the DNS record.

You would need a hardware load-balancer of some kind I'm afraid.

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