You could try using the SPF stuff.  It'll only help with hosts that use SPF,
but its worth a bit.

Darrin Chandler spoke forth with the blessed manuscript:
> Mark Phillips wrote:
> 
> >I have a domain that is due to be renewed next week. I have not used the 
> >domain for anything. As of two days ago, I am getting hundreds of email 
> >failure notices for names that I don't know using this domain. Such as 
> >KarenStrumps@allonthego.com.
> >
> >I added an example below.
> >
> >What does this mean? What can I do about it?
> >
> >Thanks
> > 
> >
> 
> The headers indicate that the bad mail in question originated from 
> chello.fr, so it's not coming from your computer or domain. They're 
> using your domain name, so that they have a valid sender but don't have 
> to accept the bounces. Instead, you get them.
> 
> About the only thing you can do is to change your mail config to not 
> accept unknown/wildcard addresses. If GoDaddy/zoneedit.com/whoever is 
> handling your email for this domain then take the problem to them and 
> they should be able to stop this for you. Note that it'll still be 
> happening, you just won't be getting the bounced mail addressed to 
> KarenStrumps@, MontyGarza@ or whatever.
> 
> Anybody else have any ideas?
> 
> -- 
> Darrin Chandler            |  Phoenix BSD Users Group
> dwchandler@stilyagin.com   |  http://bsd.phoenix.az.us/
> http://www.stilyagin.com/  |
> 
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