Not sure how to even officially report this. I've logged in, and I had mail from a user I do not recognize (no shared guilds or anything). They had sent me a motif, which turned out to be "Greymoor Legs". However, prior to the message accepting, I received a very bizzare looking error message, clearly in computer code (random numbers, dashes, etc). All I could make out was "Bag Message" and "Bag Error".

I did not ask for this item, ever. I do not recognize the user at all. I was not even online when they sent the mail. Then the unknown error message.

I still have the item in question, if that matters.