Thanks for looking into this. I just realised that the domain in question got fixed overnight after notifying the sysadmin. I guess this is a good thing, yet I'm left puzzled with the difference between confBIND_OPTS option and compiled INET6 support.
Hello Mikhail, The difference is rather simple. The sendmail program will look up AAAA records only if it is built with the NETINET6 compile-time macro defined. If so, it looks up AAAA records first, then A records. Thus, if sendmail is not compiled for IPv6, then the resolver will never query AAAA records. Hence there will never have a problem related to the WorkAroundBrokenAAAA. See 24.9.91 as "ResolverOptions" and 9.2.7 as "Broken IPv6 Name Servers" in the sendmail book by O'Reilly (the so called Bat Book ISBN: 1-56592-839-3) The book recommends the following if you find a broken Name Server: a) Notifiy the hostmaster running the broken name server. The sooner the broken name servers are fixed, the cleaner the internet will run. b) Add the define(`confBIND_OPTS', `+WorkAroundBrokenAAAA')dnl into your sendmail.mc file. Regards, David -- David Robillard UNIX systems administrator & Oracle DBA CISSP, RHCE, Sun Certified Security Administrator _______________________________________________ firstname.lastname@example.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"