[CentOS] pop3 attack

Fri Mar 13 18:11:58 UTC 2009
William L. Maltby <CentOS4Bill at triad.rr.com>

On Fri, 2009-03-13 at 14:51 -0400, James Pifer wrote:
> > The masquerading options are for a different purpose.
> > I'm glad you got it sorted out.
> Although I'm able to send mail to most people without a problem using
> smarthost, I still have a few that bounce back with errors like:
> Your message was rejected by mail.lance.com for the following reason:
>      Service unavailable; Client host [cdptpa-omtalb.mail.rr.com] blocked by zen.spamhaus.org; http://www.spamhaus.org/query/bl?ip=
> I'm using the smarthost server that I should be using according to the information:
> define(`SMART_HOST',`smtp-server.carolina.rr.com')dnl
> Although I'm in a residential IP range, my connection is Business Class, so sending smtp mail is not restricted (at least contractually). 
> Why would I still have this problem if I'm using smarthost? Is there a way to resolve it?

I would contact the RR support folks. I think they are the ones that
would need to clean up the blacklist entry with Spamhaus. They should
also be able to help ensure that your configuration is right. Just be
prepared to get through the level 1 support delays before you get any
help though. That's been my experience.

> Thanks,
> James
> <snip sig stuff>