Spam Resource: All Things Deliverability

Based on page views, here's what was most popular on Spam Resource throughout 2015. (I'm sensing a theme...) Ask Al: My email address is being used in spam! Email address forgery is still a big deal, as measured by the number of people finding their way to my blog b…

SendGrid's Kirill Popov left a most helpful and timely comment on my previous DMARC record-related post . He writes: "Even if you're *reasonably* sure that you have done all the diligence above and do not expect a lot of rejects, make sure your RUF and RUA addresse…

RRVS (the Require-Recipient-Valid-Since Header Field) as documented in RFC 7293 seems like a neat idea. It was designed by Yahoo and Facebook folks with the best of intentions. But as an identify theft prevention measure, I am worried that it really falls short. Here's th…

Auto-forwarding mail today is kind of a pain in the butt. If a domain has a p=reject DMARC policy, mail from somebody at that domain likely gets blocked if you try to forward it on to, say, a Gmail account. Even if a domain doesn't have a p=reject DMARC policy, your "…

The French ISP Orange  is shutting down email service on the domain voila.fr . Service is expected to end on January 15, 2016. At some point after this date, expect any email to voila.fr addresses to be rejected. The online shutdown  FAQ  explains (in French) that users have an…

Chairman and CEO Matt Blumberg just announced that Return Path is now sixteen years old ! Congrats to everyone over at Return Path. That's a long time in the email game. Lots of other companies have come and gone in the email and reputation space since then and Return Path&…

I've had a few folks ask recently: "Are the domains yahoo.com.cn and yahoo.cn truly retired?" After all, XNND Domain Intelligence shows them as valid for accepting mail, meaning they have proper MX records configured and there seems to be servers configured to a…