My E mail addresses have been Hijacked

[Domain Signs]

I have 4 active sites and for each one of them someone (or several someones) have hijacked the main e mail address and they are sending sp*m with them. I am not receiving any complaints but I do receive all of the bounced e mail and all of the Auto-Replies and notices of the Undeliverables. Not only is it bad for my business and my brand, I consider it theft and would like to know :
A) Who to report it to
B) How to stop it

Thanks for any and all help with this.

[flood6]

It is most likely 1 of 2 things. Either someone is spoofing your email address to send Spam or someone who has your email address in their address book has a virus and your email address is getting used as the return sometimes.

There is not much you can do about either one. Some people suggest notifying some website or whatever if people are spoofing your email address, but the fact is, you're just pissing in the wind. You can tell your host and ISP what is happening, but if it is one of the above situations, there is nothing they can do to help.

Most of the major ISP's know that it's not really you sending the spam or virus, so if they ban someone, they ban the sending IP.

From time to time I'll get a wave of returned email that I never sent and after a month or so, it stops.

[DarrenC]

Yes, it does seem like it's a virus rather than spoofing your email address. I receive plenty of emails from postmasters with tranaction errors etc.

Unfortunately, there isn't anything you can do about it.

Do you use a formmail script on your website? A friend had a problem where someone was using this script to send out spam to AOL members, there was a major security flaw in the script.

Just something else to bear in mind.

Darren :)