I had to check on this. Make sure that you use www.spamcop.net. It is
free (for the base features) and it does help. I have no affiliation
with them, so I am unbiased... just a happy user.

jh

Begin forwarded message:

> I also use a service called SpamCop that sends nice letters
> to all of the sysadmins of the originating content. It seems to have
> worked too.