I'd like to fix a long-standing issue here; namely, I'm not calling the zen zone at spamhaus.org properly in main.cf. What I have is:
reject_rbl_client zen.spamhaus.org, as a smtpd_client_restrictions entry. Reading the spamhaus web site FAQs I see that zen is a DNS zone combining their three other zones, not a host name. This explains the multiple entries in /var/log/maillog: Jan 15 13:13:59 salmo postfix/smtpd[13598]: warning: 43.29.121.87.zen.spamhaus.org: RBL lookup error: Host or domain name not found. Name service error for name=43.29.121.87.zen.spamhaus.org type=A: Host not found, try again How do I properly refer lookups to zen.spamhaus.org? I did not find anything relevant on the web site. TIA, Rich -- Richard B. Shepard, Ph.D. | Integrity Credibility Applied Ecosystem Services, Inc. | Innovation <http://www.appl-ecosys.com> Voice: 503-667-4517 Fax: 503-667-8863