Quote Originally Posted by Kimberly51 View Post
So maybe I should mention it to her, partly because he is talking with an outside service rep and making disparaging remarks about me to that person, which reflects on my companies reputation, not just mine.

What do you all think? Should I or shouldn't I, that is the question?
Well if you don't tell her, how can the company make a decision about any damage being done to it's reputation?

IMHO, they need to know - and given the comments in the past, I think you're on solid ground. There may be other things you're not aware of, so just pass on your evidence.