How do you hide Mail Server real IP address?
I do a dig on gmail.com and could not find a single IP address.
However when I do a dig on my own domain.com, it leaked the real IP address through additional section
I know what’s the point of hiding real IP address. I just do not want to be DDoS-ed. Happened once (back in the 2009, and it was #2 gaming community in Asia went to abyss by the end of the month because of constant DDoS, now it’s a company, everything could go wrong).