Following up on my earlier message that described the threat, here are the URL's to use to get information about the repairs for your vulnerable e-mail readers.
For Microsoft products' status, see
<http://www.microsoft.com/ie/security/?/ie/security/oelong.htm>
For Netscape products' status and protective measures, see
<http://home.netscape.com/products/security/resources/bugs/longfile.html>
All Eudora products are already safe. Confirmation at
<http://www.eudora.com/>