I have everything setup and running great, 5 domains, email, etc. all working very smoothly. Then I come across some information that I don't have rDNS setup which would make things even more secure. My domains are housed with Google Domains using their name servers. I've looked at a bunch of articles on setting up the PTR record but it's still very confusing to me. 1) Do you really need the rDNS? 2) is there a simple way to set that up with my current config? VPS with GoDaddy, Domains with Google Domains using their nameservers. I know I could setup nameservers on my VPS but only if I need to or if it will really benefit me.