>> Another angle we used when we saw a similiar issue. Use rate-limit to >> limit the number of recipients an IP can send to per hour. Use a >> plugin for Squirrel Mail to limit the number of recipients per message >> and the number of messages per day. Spammers must send out thousands >> of messages to make it worth there while. At least this worked for us >> using Exim and Squirrel Mail. >> > > Where is the squirrelmail plugin to ratelimit recipients
http://www.squirrelmail.org/plugin_view.php?id=213 Matt