Hi all, We've been experiencing "CNAME_lookup_failed_temporarily._(#4.4.3)/I'm_not_going_to_try_again" errors when sending mail to @va.gov addresses. Since QMT includes the Big DNS Patch, a DNS packet buffer overrun isn't the issue. I wonder if we might be experiencing the other DNS issue described at <http://fanf.livejournal.com/122220.html> by Tony Finch:
"Originally qmail made a CNAME query in order to look up the canonical version of a domain, but this caused interop problems with BIND 4. This was replaced with an ANY query, which had fewer interop problems but is still wrong. Both of these queries are wrong because they don't trigger alias processing, so if there is a CNAME chain the response will not actually yield the canonical name. Because of this qmail has code that makes a series of queries to follow CNAME chains. If instead qmail made the correct query, an MX query (or A - it doesn't matter which), the response will include all the CNAME RRs that qmail wants to know about, and it would not need its inefficient CNAME chain handling code." Does anybody have experience enough to say if this might be the case? Is there a patch suitable for QMT that corrects this? Or is there another workaround? Thanks thanks thanks, Quinn --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
