The Postmark team has announced a major update to their message activity feature, introducing "Delivery Confirmations" which provides more transparency and visibility into email delivery. With this new feature, users will now see a "Delivered" record for every message in activity, showing the actual server and IP that accepted it, allowing for better troubleshooting of delivery problems and improved control over email delivery. This update aims to increase transparency and accountability, enabling Postmark customers to identify potential issues and improve their overall email delivery experience.