I'm getting random e-mails attached with viruses form people on my mailing list but they did not send them. I have no virus on my computer or server. I'm using an Exchange sever to send and receive e-mail. Also when I reply an e-mail I get back an error stating that there is no mailbox for an e-mail address that doesn't match the reply address. For example, email@example.com emails me but error comes back no mailbox for firstname.lastname@example.org. Does any have any leads on what might be the problem?