Huh. You were less than forthright. Maybe a little deceptive. Is the e-mail about a very serious thing? I think if you even start to question yourself, you've done something against your conscience. Sometimes that's worse than doing something glaringly wrong because your heart condition is involved. You don't want your conscience to be deadened. Difficult situation. I'd tell your supervisor and ask his/her advice.
I, personally, don't feel that its serious. I ran the sales persons book of business (which you would think he's entitled to see anyway)...They're his accounts, he started them and he manages them. I think they feel that he might pull all his business from this company and go elsewhere with it. But how would I have known that they didn't want it run? I never needed approval to get them done before.
I wouldn't worry about it that much, then. Unless you think it might come back to you that you sent the report and shouldn't have. That's a point of contention.