Yahoo's recent DMARC policy change didn't just break somebody's church list. It also caused problems for every single discussion group hosted by OnlineGroups.net. Chief Wrangler Dan Randow and his team didn't take that sitting down. They didn't cry, shake their fists at the heavens, or order t-shirts that said "YAHOO BROKE MY MAILING LISTS AND ALL I GOT WAS THIS LOUSY T-SHIRT." Instead, they quickly came up with and executed a plan, implementing product changes within two days to make their collaboration platform compatible with Yahoo's DMARC domain policy. What did they do and how did they do it? Click on through to learn more about it.
In the next chapter in the story of Yahoo's recent DMARC policy change, Andrew Barrett shares a snapshot of what percentage of an example email service provider's clients send mail via the ESP using a Yahoo.com from address.