Postmark has announced the addition of new features to its Inbound service, including a redesigned Server Settings page and two new features: Inbound Spam Threshold and Inbound Rules Triggers. The Inbound Spam Threshold allows users to set a threshold for spam scores, blocking messages with high scores without needing user intervention. Inbound Rules Triggers enable users to add custom rules for inbound processing, allowing for more control over message filtering. The Server Settings redesign organizes settings into three categories: General, Outbound, and Inbound, providing easier access to various server configurations.