On Wed, Nov 17, 2010 at 11:47:45AM +0000, Chris G wrote: > ch...@dps:/etc/postfix$ host mws.zbmc.eu > mws.zbmc.eu has address 192.168.1.4 > mws.zbmc.eu is an alias for zbmc.eu. > mws.zbmc.eu is an alias for zbmc.eu. > zbmc.eu mail is handled by 10 zbmc.eu.
It is not legal for a DNS CNAME RRset to coexist with other data for the same domain name. Nor should you have multiple CNAME records for the same domain. If "mdw.zmbc.edu" is a host with "A" records, it must not be a CNAME. If it is an alias to another domain, it is must not be a host with "A" records. You need to fix your DNS data. -- Viktor.