JF Mezei: > I am new to the list. > > This is on OS-X Server 10.6.3 on an Xserve with postfix 2.5.5 that came > with the system. > > > I have a situation where using zen.spamhaus.org , spam gets through > despite zen saying that IP is bad. > > here is a sample error message: > > connect from cpe-67-252-139-22.buffalo.res.rr.com [67.252.139.22] > May 19 01:09:15 velo postfix/smtpdP26473]: warning: > 22.139.252.67.zen.spamhaus.org: RBL lookup error: Host or domain name > not found. Name service error for name=22.139.252.67.zen.spamhaus.org > type=A: Host not found, try again
You have a mis-configured name service that breaks Postfix's DNS lookups. That can be due to bad contents in the resolv.conf file that POSTFIX uses, or some missing file that is needed to resolve names (not necessarily the same file as when YOU type commands). It can also be due to a file or DIRECTORY permission problem. POSTFIX does not use root privileges, whereas users often debug problems as root. For that, the simple solution is to debug DNS lookups as a non-root user. Wietse