His nameservers have been set to DigitalOcean servers for well over a year. A GoDaddy rep wouldn't be able to change MX records on those nameservers. They would have to change the nameservers on his domain to GoDaddy servers and then add new MX records. That's more than just a simple MX record change and seems more unlikely to me.
His nameservers have been set to DigitalOcean servers for well over a year. A GoDaddy rep wouldn't be able to change MX records on those nameservers. They would have to change the nameservers on his domain to GoDaddy servers and then add new MX records. That's more than just a simple MX record change and seems more unlikely to me.
Perhaps his DigitalOcean account was compromised?