Hi,
this is very strange, cause you can´t know, in which distribution list you
are or which person have used your email and have send it to another one.
If you getting emails with your email address, it is only spam and you can
delete it!
One thing, dont use only one email Address!
Probably because spammers or viruses are spoofing you as the sender. You
can't stop that from happening. Just make sure you keep your computer
patched via Windows Update, protected with antivirus/firewall, etc.