rfc-ignorant.org has shutdown.
If you are seeing lame_server resolving messages with rfc-ignorant in your logs this might help. I tried this on version 6 and 7.
named: lame server resolving 'progressivebusinessgifts.com.fulldom.rfc-ignorant.org' (in 'fulldom.rfc-ignorant.org'?): 127.0.0.1#53
The message is originating out of spamassassin.
I located the check in /opt/zimbra/conf/spamassassin/20_dnsbl_tests.cf
I commented out the 2 lines about ___RFC_IGNORANT_ENVFROM
su - zimbra
% zmamavisdctl restart
There might be a better way but that is how I did it.