Although this has apparently been around for a few months, I hardly ever use my Yahoo e-mail account, so it was news to me.
When I hit 'send,' a verification page intercepted the process. While we're all familiar with services from companies such as SpamArrest and Vanquish that ask non-whitelisted senders to verify themselves before a message can be delivered, this is the first time I've had to verify myself as a sender on my own e-mail provider's site.
Naturally, to get this far in the process, I was already logged in to Yahoo e-mail as a registered user. And my Yahoo e-mail account dates all the way back to practically my earliest days on the Web -- the post-Mosaic era.
Hey, Yahoo. Don't I get any credit for over a decade of good behavior?