diaphanous25

A signature on the letter indicates authorship.Obviously signing across the seal is done so the envelope cannot be opened and the letter cannot be examined or tampered with by anyone.

You have no idea what you're talking about. The envelope wasn't sealed and this person never signs the envelope for anyone.

I had permission because the person did not sign the back of the envelope as dictated by the instructions implying he condoned my reading it. I would have brought this to their attention, but did not want to seem as though I were giving him writing tips, not to mention the letter was due like the week before.

I was wondering one of my letters of recommendation had a typo in it. Does this make the letter look sloppy and ill prepared or do most letters have similar problems? Also some of the information was confused, the person mentioned my GRE scores as subpar when my GPA is subpar. Are these type of mistakes to be expected?