We NEVER send out bulk commerical e-mails nor do we EVER send any e-mails containing malicious content (including viruses, dialers, trojans etc.)
However, we do get a number of bounced e-mails for messages that we did not send. Which tells us that people are sending e-mails with forged "From:" headers to make it appear as if we are the senders.
We assure you that we are not the ones sending these e-mails. We are just as much victims of this forgery as you are.
For an excellent FAQ on e-mail forgery please see this FAQ.