Yahoo blocks unauthenticated PayPal and eBay Mail

Yahoo announced this morning that over the course of the next few weeks Yahoo would roll out a new feature to their email that blocks any unauthenticated email from eBay and PayPal.
In a blog post Nikki Dugan says:

Our weapon is a technology Yahoo! spearheaded called DomainKeys, which uses cryptography to verify the domain of the sender. In overly simplified terms, if the email’s originating domain ain’t really eBay.com or PayPal.com, it ain’t going through.

DomainKeys / Domain Keys Internet Mail have seen steady adoption by senders and receivers over the last few years. As more and more companies are signing outgoing mail, more and more receivers can make delivery decisions based on those signatures. This is the first time a sender and a receiver have announced an agreement that all non-signed email will be rejected.
Hat tip: Matt

Blocklists and standards
More on Relevancy

Related Posts

Marketing and Delivery blogs

Mark Brownlow links to a number of marketing and delivery blogs over at his website. Different perspectives and different thoughts will give you the tools to create the best email marketing campaign for your business.

Read More

Real Spam?

Both Al and Mickey have written astute comments on Kevin Sirtz’s article about how permission is not important in web[sic] marketing.
It is pretty clear to me that Mr. Sirtz does not really understand email, and not just because he conflates email with the web. Anyone who has been involved in the email marketing space knows that permission is the lynchpin of good deliverability and high ROI.
This is not to say that Mr. Sirtz is not having the experience he states. With very small lists you can get away with personal relationships substituting for permission. Senders of any size, though, do not have the relationship with their recipients and need to actually send email only to those recipients who have requested to receive email from the sender.

Read More

IP Reputation Portability

Matt posted a discussion of the portability of IP reputation over at his EmailKarma blog.
I have heard about Hotmail/MSN’s claim that if you add your new IPs to your SPF/SenderID record and send from your old IPs that your old IP reputation will transfer to your new IPs. I’ve not heard it working in practice, but it really can’t hurt to add your new IPs to your records as soon as you know what they are.

Read More