backscatter hosts

(was: Re: Barracuda Networks Spam Firewall) Valdis.Kletnieks@vt.edu wrote: | When it gets built, will it list AOL.COM for not rejecting at the original RCPT | TO? Or Hotmail.com? Much as I hate to come to their defence, hotmail rejects unknown users during the dialog, and has done so for as long as I can remember. And AOL is reportedly spending a colossal sum redesigning their mail system to work this way. Goes to underline the importance. The reality is, nowdays, those who can't do things properly themselves should simply host their mail somewhere that can.