The Postmark team has updated their DNS Settings page to improve its simplicity and ease of use. The new layout makes it easier to understand the records needed for domain authentication, which is a crucial step in sending emails through Postmark. However, SPF (Sender Policy Framework) records are no longer required for good delivery, as email providers now check the Return-Path domain instead. This change means that Postmark users can bypass adding an SPF record to their DNS, and their emails will still pass SPF alignment by default. The updated page also aims to provide better assistance in case something goes wrong with the authentication process.