So if I'm reading this right, milters such as smf-sav or milter-ahead will no longer be of any use?
...Kevin -- Kevin Miller Network/email Administrator, CBJ MIS Dept. 155 South Seward Street Juneau, Alaska 99801 Phone: (907) 586-0242, Fax: (907) 586-4500 Registered Linux User No: 307357 -----Original Message----- From: Axb [mailto:axb.li...@gmail.com] Sent: Wednesday, October 16, 2013 9:18 AM To: users@spamassassin.apache.org Subject: Re: one word spam (continued) On 10/16/2013 06:42 PM, David F. Skoll wrote: > On 16 Oct 2013 09:15:07 -0700 > "Neil Schwartzman" <n...@cauce.org> wrote: > >> List verification. Many receiving sites will block after X bounces, >> clean up your list from 550s, and spam the real thing from another >> botted IP. > > <rant> > And you know who we can thank [sic] for this mechanism of list verification? > > Microsoft, that's who. > > For versions of Microsoft Exchange prior to 2013, you need to jump > through ridiculous hoops to configure it so that invalid RCPT commands are > rejected. > By default, Exchange accepts any old RCPT command and then either > rejects after DATA or (if a RCPT was valid) is forced to generate a > delivery failure notification. > > For Exchange 2013, the ridiculous hoops no longer work and I don't > believe it is even possible to configure Exchange 2013 to reject > invalid RCPTs without truly grotesque hacks. > > Thank you, Microsoft, for making the Internet a better place. > </rant> Exchange 2013 can still reject mail to unknown users, except that it does it _AFTER_ DATA, which means that everybody that tried to be a good player has become a backscatterer, including their own services which have they have elegantly turned into spam spewin bazookas. May I join you? <rant> Thank you, Microsoft, for making the Internet a better place. </rant>
