Forged spam emails from my domain

I was down in Cork for TheWho concert at the weekend which was a great gig at the Marquee, however when I loaded outlook on Sunday evening to catch up on my emails I had over 1000 emails from various mail servers around the world saying that "Your mail could not be delivered" and "Undelivered Mail Returned to Sender".

It appears that someone has used an email address at my spotlightIT.com domain as the forged "from" address in a spam run to quite a lot of people and these mail servers are sending the email address back to me even though I never sent them. They are the usual spams for viagra etc

I did a search and apparently this happens quite a bit

My Short Life As An Unintentional Spammer

My email address being forged for sending out spam

Just in case anyone is trying to track down who send on these spams please realise that no one at spotlightIT.com has had any involvement and if you look at the headers of the email message you should be able to determine this.

It appears that there is little I can do about this but hope that they do not use my email address again.