Thanks, but each of my users would have received different emails, so can't use internal names or email category to do this. Is there a way to identify recipients who didn't open the last 5 emails we sent them? Screen shots of steps would be so helpful.
You could just use a split (based on the tracking logs table) to split outs people based opening those 5 internal names. Use AND statements in the split for the internal names. The complement generated will be your list of people that have not opened.