![](https://i0.wp.com/www.spamtacular.com/wp-content/uploads/sites/2/2009/10/6525115985_f20f867f38_authentication.jpg?resize=360%2C182&ssl=1)
Something that authentication can’t help
9 October 2009
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