Mark Delany wrote:
[ re _dkim vs _domainkey ]
Also worth considering is the s= option. If s=voip, would the address space
be _dkvoip, etc?
Why, because the voip group might want to administer their keys
separately from the mail group? I suppose they might.
They could achieve this by using a dotted selector (e.g., delegate
voip._domainkey.example.com to the voice group, and then use selectors
like apr2006.voip). That seems preferable to defining a new prefix for
each new service. Of course, the voice and mail folks need to trust
each other since the voip folks could publish an email signing key and
vice versa. Let's hope there isn't that degree of infighting within a
domain!
-Jim
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