On Fri, Nov 14, 2008 at 1:59 PM, <michael.dillon@xxxxxx> wrote: Thanks, appreciate the insight. >> > This still breaks deliverability. >> >> How? > > A user writes an email and sends it to another user. The other user does > not receive the email. This means that deliverability is broken. The > DNSBL is an agent in preventing that delivery. Is this unique to DNSBLs? If not, then why does it merit deeper consideration in the context of DNSBLs? Regards, Al Iverson -- Al Iverson on Spam and Deliverability, see http://www.spamresource.com News, stats, info, and commentary on blacklists: http://www.dnsbl.com My personal website: http://www.aliverson.com -- Chicago, IL, USA _______________________________________________ Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf