Highlights:
More than 40% of inbound mail to Yahoo is authenticated with DomainKeys.
Yahoo blocks un-authenticated messages that claim to be from eBay or Paypal. They have no plans (as of yet?) to do this in a broader fashion for other domains.
Will Yahoo be sending un-authenticated messages through more filtering than if they were authenticated? Yes.
You can read the full interview here. It's quite insightful. What I get out of it is that email authentication is the future, and the future is now.
Need help with email authentication? ExactTarget can help! Our Sender Authentication Package covers all the common authentication methods, including DomainKeys and DomainKeys Identified Mail (DKIM). Contact your account services representative for more information.
