the problem there is that mistakes happen - i had someone once send a HUGE spam out as if it was from our domain. emails poured in to me for weeks, and i went crazy to convince people that i didn't spam them - which i didn't.

those people wrongly believed i was a spammer, and they were damned sure. i've seen assholes do that to people they hated on boards - did a great job of spoofing their email addresses and what have you.

it's not easy to know who's spammer for sure.