Each afternoon for the last three days I've gotten 3 or 4 mail delivery failure notifications for e-mails I never sent with addresses I don't recognize (every e-mail was to a different address). My ISP, Comcast, which is also through whom I do e-mail was absolutely no help.
I've run extensive virus and malware scans the showed nothing wrong and I'm seeing no operating changes. Just these dozen e-mail notification delivery failures.
Has anyone run into something like this or have any suggestions? These dozen aside I worry that another 10,000 e-mails were sent out that I can't see.
I'm running Windows XP on a six year old 3gH computer.