engine - 12:17 am on Feb 22, 2013 (gmt 0)

Earlier this month, we began using a new technology called DMARC that makes it extremely unlikely that most of our users will see any email pretending to be from a Twitter.com address. DMARC is a relatively new security protocol created by a group of organizations to help reduce the potential for email-based abuse.Twitter Uses DMARC to Act Against Email Phishing For User Passwords [blog.twitter.com]