I remeber reading on the CM website/blog a long article with a lot of steps one could take to prevent its domain/ip/server from being blacklisted.
This was a long article with about 20 such recommendations and it was written about 2 years ago.
If anyone remembers it can it post the link? Thank you!
I can\t seem to find it anymore even tough it has been in the back of my mind for about 2 years!
Ha, found it: