[CentOS] pop3 attack
jep at obrien-pifer.com
Fri Mar 13 19:51:36 UTC 2009
> 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=18.104.22.168
I'm using the smarthost server that I should be using according to the information:
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?
More information about the CentOS