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 [email protected] > to [email protected] 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: [email protected] 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
