|I guess, this is simply spam, where your hotmail e-mail address is used as a return e-mail address.|
That means, if an e-mail is undeliverable, the e-mail notification and the original send e-mail returns to your hotmail address.
This is often done, because such notifications and warnings will not be blocked by spam filters.
The original poster should always write the last response !!!
Let us know, if the problem is solved !!!