How to minimize chances of one's domain being falsely blacklisted?
Put your org name and preferred methods of contacts wherever one might look. Setting up a web server for all domains you are sending mail from is reasonable. Setting up a server with unrelated content ("parked") is a red flag.
If upon registering the business with local authorities ...
I solved this problem by using:
main.cf file: transport_maps = hash:/etc/postfix/transport_maps
# recipient domains that have rejected the main MX