We are using Exchange 2003. I have 1 user who seems to have had his email address spoofed and has gotten several thousand returned emails in the past 2 days on his exchange account. After several malware/virus scans, I am certain that there are no viruses on his pc.
My question is this: is it normal for those sent items to show up in his "sent items" folder in exchange also? This happens even if his pc is shut down.