In Adobe Campaign Classic, a control typology rule is the appropriate method for checking personalization before sending a delivery. Control typology rules can be set up to validate certain conditions, such as verifying the presence of personalization fields. If any required personalization is missing, the control rule can trigger a cancellation of the delivery or flag it for review.
By implementing this rule, the developer ensures that each delivery meets personalization requirements, preventing incomplete or improperly personalized messages from reaching the audience.
Filtering typology rules and delivery scripts are not as well-suited for this purpose, as they are not designed for pre-send validation in the same way as control rules.