On 5/22/21 7:41 AM, PGNet Dev wrote: > On 5/22/21 8:25 AM, Simon Wilson wrote: >> What am I missing,as a commercial email verification service what are >> they trying to validate? > ... > > Personally, I consider email-verification services parasites -- and > manage my server accordingly.
I fully agree, and have even complained to Amazon AWS about them to no avail. > Postfix provides a _great_ set of tools to reject what you wish at > numerous transaction stages. Add to that option to firewall-off IP > addresses -- and enjoy the silence. > > Not a choice/action everyone is willing/able to make. I also fully agree with this, too, and use Postfix to can their initial tries (they usually make two attempts from two different IP addresses, the first to a bogus user at the address, and the second to an "info" , "admin" or "postmaster" at the address. To date here are the IPs used by briteverify.com that I have marked to drop in my firewall... ## briteverify.com (Amazon AWS) 34.195.68.199 50.19.103.141 50.19.103.149 50.19.105.217 50.19.253.57 52.1.117.226 52.3.174.189 52.203.39.60 54.83.44.163 54.83.54.115 54.197.230.106 54.197.250.255 54.225.108.187 54.235.119.112 107.20.134.42 107.20.207.58 107.20.218.183 107.20.232.98 107.20.235.139 107.20.249.220 107.21.204.157 107.22.212.75 184.72.250.175 184.73.205.138