Twice it has happened that a person (A) sent a PM to another (B) but a third part (C) unintentionally got a copy of the letter (where C on one occasion was two people). The receiver C is not mentioned anywhere in the PM, i.e. not in the CC/BCC address or anything.

I have not been able to recreate this bug and had no luck finding out anything about it, nor finding anything on the net. I know this information isn't enough to solve the problem, but at least I've reported that it exists. With any luck, someone else already reported it and solved it.

I'd rate the problem very severe and have disabled PM on my board.

Thanks,
Anna