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

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