[donmcronald]

I’ll add another. Why do they use the same domain for both MX records? Why not use mx.zoho.com, mx.zoho.net so that if one domain gets busted at the registry level the backup MX still works?

[Symbiote]

Perhaps a reliable CCTLD for the alternative, so it's not under the US government.

I noticed Amazon use a UK domain for one of the four Route 53 nameservers they specify.