Re: [qmailtoaster] CNAME Lookup failed

[cj yother]

Dan, I agree.  I think this is much more appropriate than changing your server configuration based on a failed CNAME lookup.  That's like changing the engine because you ran out of gas. On 09/06/2013 08:04 AM, Dan McAllister wrote: Just to throw my 2-cents worth in... If the other (receiving) domain is using an MX record value that is a CNAME, this error can show... in such a case, this is not a name resolver error, but rather a DNS error. It is a violation of the RFCs for the MX record value to resolve to anything BUT an A record. I have recommended these sites before, but as a mail admin, checking out the settings of the OTHER domain when delivery problems are being reported is just a smart idea. intodns.com - checks a wide variety of DNS issues, including MX records mxtoolbox.com - has a wide variety of tests available, including SMTP connection tests. Many of these tests will FAIL if the MX record for the domain is a CNAME Good luck to you! Dan McAllister IT4SOHO QMT DNS/Mirror Admin --