Hello,

Long time ago we used to suffer from relay and users using your own mailservers to spam but thanks god for auth-before-pop.

But now i'm facing small problem with someone which us he is spaning using whatever mailserver with your@email.address.com and when these emails go to unknown addresses they will bounce back to your email! what you will do in this case? how to protect your self.

i know you can prove its not you who spam to people from the headers and many other ways, but the question here isto protect your self from the 100s of bouncebacks !!