On Apr 4, 2011, at 1:21 PM, Franck Martin wrote:
I think you are thinking it as only a DNS issue.
But creating a sub-domain, means that the from needs to match too, therefore
you may need to remap all your corporate email addresses from
jon(_at_)iecc(_dot_)com to jon(_at_)corp(_dot_)ieec(_dot_)com to separate
from the emails sent by your application at iecc.com (if you want to keep the
first party signing)
There's a tautology there.
You're saying "I'd have to do <first part signing> (if I want to do first party
signing)."
There's no DKIM requirement to do that, and signing an email From:
jon(_at_)iecc(_dot_)com with d=corp.iecc.com (or d=foo.blighty.com) is just
fine.
If someone chooses to do solely "first party signing" (for some non-DKIM
related reason) they're sacrificing many of the advantages of using DKIM to
authenticate email, and the ability to differentiate streams of email is one of
those advantages.
Cheers,
Steve
_______________________________________________
NOTE WELL: This list operates according to
http://mipassoc.org/dkim/ietf-list-rules.html