@Scott, thanks for your reply.
If you have control of your own servers on DO then adding PTR records within the DNS settings is fairly simple.
Unfortunately URL shortners only redirect to the domain name so when blacklists check them, they they go numerous levels deep. Email servers are fairly sophisticated at checking links, other wise all spammers and people phishing would just use bit.ly and spam away
For me to reach out to each blacklist every time my IP changes (this is every refresh) is going to be impossible.
How come DO is rotating your IP’s? surely if you add a server to your stack, you get a fixed IP unless these are automatic and added and removed as needed with capacity? If this is the case there there is a problem in your deployment,
Can you not just restrict my deployment to use AWS only… would save me moving my deployment there which is a shame as Netlify is actually quite nice.