I've been getting periodic influxes (74 today) of 'returned mail/ delivery failed messages' which have reputedly come from made up senders @my domain name.
I've been informed this doesn't mean I've been hacked, but that someone is spoofing my address.
Is this right? What can I do about it?
Assuming more messages make it than don't, a lot of folk are getting crap purportedly from me. Any help welcome, cheers y'all.