Not sure if this is the right section to post in and so I apologize in advance. Once in a while I receive e-mails from admin@<my domain>.com which isn't coming from my box because it contains spam. I looked at the mail headers and I don't see a source of origin of the email besides the admin@<my domain>.com. I'm using exim version 3.x and exim isn't set up as an open relay. Any ideas how to prevent this? Thanks.