CircleID

Identifying Spam: MAAWG's Latest Documents Improve Accuracy of Reputation Systems

The Messaging Anti-Abuse Working Group (MAAWG), of which Return Path (my employer) is a very active participant, met recently in Heidelberg, Germany. Among other exciting projects, they finished two new best practices documents which have been lauded in the press as a big step towards stopping botnet spam... more»

If It Spams Like a Duck…

We've been wondering what e360 hoped to gain with their recent lawsuits against Spamhaus and others. If they were trying to clarify the right of ISPs to protect their users from spam, then they've certainly done a good job -- especially in this particular case. If it wasn't clear before, Judge Zagel's explanation should satisfy even the most pedantic of filtering opponents: "ISPs acting in good faith to protect their customers are not liable for blocking messages that some spammer claims are not spam..." more»

Trust in Email Begins with Authentication

As most CAUCE supporters already know, forging 'From:' or other commonly seen email headers is trivially easy. It's one of the most frustrating oversights in the creation of Internet email technology -- though of course that's only obvious in hindsight; it was just fine for the pre-Internet networks of the late 1970s and early-mid 1980s. Since then, things have changed -- and the most interesting recent technological advancements in email have been in the realm of sender authentication, which encompasses ways to verify that the apparent sender of a message actually is the entity which sent it. more»