Posts tagged

Authentication


AOL Changes DMARC Policy

A couple weeks ago, Yahoo changed its DMARC policy to stop fraudulent emails. In response, many email receivers started bouncing emails with Yahoo.com From addresses sent from non-Yahoo servers. Yesterday, AOL announced the same change to its DMARC policy, and we expect to see similar results. Like the Yahoo change, this will only affect senders …

AOL to Begin Checking for DKIM

Word-to-the-wise reports that AOL will begin checking for DKIM Authentication sometime in 2009, as discussed in a recent ESPC call. They’re using DKIM to evaluate your overall "IP reputation" (check out the AOL blog for more on that). MailChimp customers, no need to worry. DKIM Authentication is included by default (and is free) in all …

How Fast Can Spammers Harvest Your Emails?

Reading through the FTC Spam Summit Report (472k PDF), I came across an interesting study they did, buried way back in the Appendix. To determine how effective ISP spam filters are, they created 150 fresh new email addresses, and posted them at 50 locations around the Internet: "The 50 Internet locations included websites controlled by …

Will Yahoo block messages that aren’t authenticated?

Here’s an interesting article about email authentication over at NetworkWorld: Will Yahoo block messages that aren’t signed? For years, ISPs have been a little vague about how they’re going to handle authentication. Will it be used to block email? Does every legit email marketer need to authenticate their messages? Do ESPs need to offer it …