How to mark a DTS package as complete even if it errors.

I want to be able to mark a DTS package as though it completed, even if a particular task within it errors off. In other words, if a task errors off just because a file doesn’t exist, I will email myself (which I know how to do) but I want the package to exit and mark it as ‘complete’. The reason being is….I’m going to have someone review our daily errors. If a package errors just b/c a file doesn’t exist, I don’t want that person spending time reviewing the error, so I want to mark it as complete. If a package errors because of an error in one of the tasks, then I want someone reviewing that issue.
Can anyone help me?