Hello, KC!

Luke-Jr luke at dashjr.org
Wed Aug 17 11:52:54 CDT 2005


On Wednesday 17 August 2005 15:15, David Ambs wrote:
> > P.S. kclug.org's mail server is misbehaving and rejecting mail from my
> > server. Can someone fix? Thanks. :/
> >
> > <kclug at kclug.org>: host kclug.org[139.146.133.42] said: 554 Service
> >    unavailable; Client host [24.145.163.67] blocked using
> > dnsbl.sorbs.net; Dynamic IP Addresses See:
> > http://www.sorbs.net/lookup.shtml?24.145.163.67 (in reply to RCPT TO
> > command)
>
> Just relay it through the Earthlink SMTP.

I am, for the time being. It shouldn't be necessary, though.

> Most all dynamic IPs are blocked now a days in dnsbl utils.

Most all IPs are dynamic and it's ridiculous to expect all mail servers to be 
on a rare static IP. Sane spam filters will only check lists of abused IPs, 
not a list of nearly every IP online.

> There's rarely a reason to directly relay from your dynamic address.

Immediate delivery and/or delivery confirmation?

> Check the DS line in sendmail.cf 

I use Postfix. Unless I want to create a mail forwarding loop when servers I 
relay for are down, it is necessary to list every host with intolerant mail 
servers in a transport file.


More information about the Kclug mailing list