On Fri, 2 Jul 1999, Scott D. Yelich wrote: > Ok, so we've beaten the dead horse with the fact that MX records can't > be CNAMES... so why does bind allow this? Go figure. for years bind allowed '_' in domain names. at one version they 'fixed' this and thousands of zone files around the world had to be fixed. Who is to say at some point in the future the server won't implement the checking. I guess bind doesn't check for this because it would be quite an expensive check to perform, given MX resords are cnames in a zone file don't have to refer to other entries in the same zone file. you could end up by performing a couple of thousand DNS queries every time a zone file were loaded in order to check this. Richard
