Spam coming to Server contact e-mail address

This seems strange but it looks like unrouted spam that is bounced by the domains in the server (i.e. they all are set to :fail: ) are coming to the account set for the server contact e-mail address in WHM. The TO line shows the e-mail address it was trying to go to at the other domain, but they come in to the contact e-mail address.

This has kinda stumped me so any help would be appreciated.

Thanks