[ietf-dkim] Re: CNAME's

Eliot Lear lear at cisco.com
Tue Jul 4 22:31:23 PDT 2006


John L wrote:
>> It's my belief that DKIM selectors don't allow CNAME's. Am I correct?
>
> Nope.  A CNAME is just an indirect address.  For example, this would
> work with all the DNS implementations I know:
>
> foo._domainkey.bar.com  CNAME farble.baz.org
>
> farble.baz.org  TXT "normal dkim key record"

A more practical use of CNAMEs regarding DKIM might be more like this:

foo._domainkey.sub1.domain.com   CNAME foo._domainkey.com
foo._domainkey.sub2.domain.com   CNAME foo._domainkey.com
foo._domainkey.sub3.domain.com   CNAME foo._domainkey.com
foo._domainkey.sub4.domain.com   TXT "subdomain 4 key record"
foo._domainkey.com  TXT "normal domain key record"


Eliot


More information about the ietf-dkim mailing list