I have a legacy program that I need to add to. What it does is scan a db table every set interval and creates Outlook invitations based on information from the table. This program uses the C# Microsoft Exchange API and I need to add a feature. What I need to do is take responses to events by users and create new db entries to log them. I don’t want to scan the inbox that created the events because not all users will respond with an email and I don’t want to scan all events from the db because there are thousands added per day and that will take too long.