I've started getting lots of emails headed "Delivery Status Notification (Failure)".
The body of the email includes the words "this is an automatically generated Delivery Status Notification" and then there's the email (some sort of spam message).
Does this mean my computer has a trojan and is sending out emails, some of which are bouncing back as unsent, or is this just spam?
I run Kaspersky Internet Security and have scanned my machine. Kaspersky tells me my computer does not have a trojan or a virus. I have also run malware bytes - also says I'm clean.