From: James D. Parra (JamespMusicReports.com)
Date: Tue Jan 15 2008 - 18:00:28 CST

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Hello,

Noticed a suggestion to use rbl check in an earlier post to the list today,
however after adding bl.spamcop.net to main.cf mail from a certain domain
started to a 451 error;

From main.cf;

<Snip>
smtpd_client_restrictions =
        permit_mynetworks
        reject_rbl_client dnsbl.sorbs.net
        reject_rbl_client zen.spamhaus.org
          reject_rbl_client bl.spamcop.net
        permit
<snip>

From /var/log/mail

Jan 15 15:42:53 postmaster postfix/smtpd[29594]: NOQUEUE: reject: RCPT from
s412.sureserver.com[216.35.197.113]: 451 Server configuration error;
from=<jamespsomedomain.com> to=<jamespourdomain.com> proto=ESMTP
helo=<s412.sureserver.com>

After removing bl.spamcop.net mail from the domain started to come through
again. That domain doesn't send spam so it shouldn't be listed. Any ideas?

Many thanks,

James

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