RE: [cobalt-users] Sendmail Bounces

["Dan Kriwitsky" <list1@xxxxxxxxxxxxxxxxxxxx>]

> RoadRunner.com (rr.com) is an ISP with several markets across 
> the country.  We have had so many complaints about their 
> clients spamming that we have had to start blocking certain 
> IP addresses.  A bounce may be an indication that they are 
> starting to require their ISP customers to use their outgoing 
> email server much like Prodigy.net, Earthlink.net, and 
> MSN.com.  This requirement is a way for them to determine who 
> is actually spamming and cancel their service.
> 
> Have your client, set the outgoing e-mail server to RR.com settings. 
> That is, if they are using RR.com to access the Internet.  If 
> not, then rr.com may be blocking their emails????
> 

If anyone wants the list of RR DHCP blocks that Road Runner sent me, I
have uploaded it to
http://mywebpages.comcast.net/egplant/rr_dhcp_blocks.txt
Their legit SMTP addresses are as provided by RR are:
http://mywebpages.comcast.net/egplant/rr_smtp.txt
According to Road Runner, blocking anything on the DHCP list should not
be a problem. If customers are running their own SMTP, they shouldn't
and I have no problem rejecting that list. All it has done is stop tons
of spam.
Ditto with Comcast. Every hit I have ever seen that ends with any of the
subdomains on http://mywebpages.comcast.net/egplant/comcast_MAPS.txt I
have found in the MAPS DUL by doing a lookup at
http://www.mail-abuse.org/cgi-bin/lookup As they add more ATTBI to their
network there may be more states that pop up for that list.
-- 
C2003 Dan Kriwitsky

Please reply to the list only. Off list replies are not read.