Q: I’m finding spam messages or bouncebacks to messages in my Inbox from myself. I know I didn’t send these messages. Why is this happening?

It’s called “spoofing”. Hackers may have gotten your email address from somewhere, and rather than using their own email address to send out Spam, they are using your email address. Unfortunately, there’s very little we can do about this since the mail protocol allows anyone to put anything in the “From: “ field of a message being sent.