Tag: Authentication

Authentication Failures

On the fourth day of Listmas, my data showed to me four authentication failures… Hey, it’s a song, okay? So, there are a number of ways to go to get authentication failures. Not everybody checks authentication, we could still be counting either DomainKeys or SenderID, etc. But, honestly, this is day 4 because that’s just… Read More

Drafted for the wrong fight

My friend Al Iverson just wrote a new blog post: “SPF Still Matters in 2016”. One of the things that he said struck a chord with me: “‘But SPF is worthless,’ occasionally a spam fighter will cry.” It struck a chord with me because SPF wasn’t ever really intended to fight spam, per se. While there is… Read More

Something that authentication can’t help

The email said, “Our last mailing had 30 complaints at AOL. Will signing with DKIM and SPF help with our reputation there?” In some ways, that is a fair question. We do talk about reputation a lot and how authentication ties into that. But, really, this is something that authentication can’t help because, for all… Read More