why am i getting spam from my own domains

[MDUK]

i have received a number of spam mails (like the one below) addressed to XXX@my domain from at least 6 of my domains that are currently parked with ND.

can anyone explain how this is happening please



Charity or Non-Profit Organization Contact:
SPRING is Almost Here... NOW IS THE TIME to Show What You Have to Offer to the World
Celebrating Our 10th Year of Charity Emailings!

Click to Advertise Your Site to
3,000,000 Internet Users

= F-R-E-E TODAY ONLY =

 

[ratboy]

If you use nameservers rather than forwarding this should stop.

 

[MDUK]

thanks ratboy