Re: Repeated Blacklisting / IP reputation

Suresh Ramasubramanian wrote:

That said most of the larger players already attend MAAWG - that leaves rural ISPs, small universities, corporate mailservers etc etc that dont have full time postmasters, and where you're more likely to run into this issue.

I've found the opposite to hold true more often. Smaller organizations can use public blacklists for free, due to their low volume, and so have little incentive to run their own local blacklist. I've typically seen the larger organizations run their own blacklists and are much more difficult to contact for removal.