ietf-mxcomp
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ISP Mail Hosts on Black Lists (was "Re: Input on identities")

2004-04-03 19:08:16

I wrote just a minute ago:
Greg Connor wrote:

--Aredridel <aredridel(_at_)nbtsc(_dot_)org> wrote:
What worries me the most about this sort of system is that it again
makes two classes of citizens on the net: Those who have end-to-end IP
connectivity, and those who have restrictions placed on what services
they may run.

This is true, I think, and it already happening to some extent... known-dialup or known-dynamic space is treated with prejudice by AOL and some others already. Bad or missing rDNS is already treated with rejections in many places now.

I have experienced this first hand. If you look at Received headers in mail coming from me, you'll see that my mail is routed through comcast.net's 'smarthost', because of that prejudicial treatment. Unfortunately, there are certain issues with this arrangement. In particular, their outgoing hosts have on occasion wound up on blacklists.

I guess to prove this point, Greg, nekodojo.org's MX rejects based on SORBS listings. Conveniently, one of comcast.net's servers is listed this month, and apparently is not eligible for automatic removal. Have a look at
<http://www.dnsbl.us.sorbs.net/cgi-bin/lookup?IP=216.148.227.85>.

My ultimate goal here is to be able to send mail directly from my private MTA, using my domain name, for which I am fully responsible, rather than relying on Comcast to keep things straight.

Philip Miller