[conspire] (forw) [sorbs.net #212641] [Webform] SORBS registration systems sends RFC-ignorant mail

[Rick Moen]

Quoting Ruben Safir (ruben at mrbrklyn.com):

> Your mail server automatically is checking to see if the sender is a 
> legit user?

That's right.

I whitelist particular domains that I know to be RFC-challenged.