backscatter problem

[Damian Rivas]

>Hi all,  anyone help with some good rules to combat backscatter email?
i seem to have a real problem with this at the moment, mostly bouncing
back from .ru domains to my customers.  i'm sure a ruleset will help but
i'm not certain what would >be best, header checks or something in the
spam rules?
>
>thanks
>
>SMJ  

The solutions depends on your MTA, if you are using sendmail check this:

http://elqui.dcsc.utfsm.cl/util/email/backscatter.html

And this:

http://www.spamcop.net/fom-serve/cache/329.html

If you are using postfix check this:

http://www.postfix.org/BACKSCATTER_README.html

If you have another MTA just google "mta+backscatter" and you'll find
tons of information.