Email authentication used to be something only big players worried about. Not anymore. While small senders may not feel the heat yet, it’s only a matter of time before it reaches them. In this blog, we explore how authentication can be implemented at the relay level to improve deliverability, prevent abuse, and get ahead. Let’s start with a look at what this means.
First seen on securityboulevard.com
Jump to article: securityboulevard.com/2025/05/mail-relays-part-1-authenticate-your-outgoing-mail/
