Dave Sill <[EMAIL PROTECTED]> writes on 10 August 2000 at 15:23:23 -0400
 > Eric Long <[EMAIL PROTECTED]> wrote:
 > 
 > >3.  The mailserver then contacts teh first server on teh list, says "here's
 > >an e-mail message", along with a list of addresses (usually 20 or so).
 > >Sometimes all those addresses are on that server, somtimes not.
 > >
 > >4.  To stop spam, the receiver then checks the list for at least one valid
 > >receiver.  if one is local, it delivers it and any other local mails, then
 > >relays the rest off to the first system in the list left over.
 > 
 > Fascinating... And there are MTA's that support this scheme?
 > 
 > >Qmail is denying legitimate messages to my users because it doesn't allow
 > >this type of relaying.  Why?
 > 
 > qmail denies it because it denies all relaying that's not expressly
 > permitted. The scheme you describe is vulnerable to spamming simply by 
 > including a local address at the beginning of the list of recipients.

The interesting thing about this scheme, I think, is that servers that
supported it might not test as open to ORBS / RSS.  Maybe that's why
somebody is trying to push the idea?
-- 
Photos: http://dd-b.lighthunters.net/ Minicon: http://www.mnstf.org/minicon
Bookworms: http://ouroboros.demesne.com/ SF: http://www.dd-b.net/dd-b 
David Dyer-Bennet / Welcome to the future! / [EMAIL PROTECTED]

Reply via email to