I'm interested in implementing some form of spam and e-mail virus filtering at the daemon.
I know that there are blacklists that you can have Exim and other MTA's use in order to cut down on spam. However, it would be nice if there were some way to stop *new* spam from places that aren't on the blacklists yet. I guess it's just easier to post my whole wishlist and see if there's anything out there like it: o It would be nice if it could be implemented either at the system-wide level (on the daemon) or on a per-user level (via procmail, say). o Also, it would be *really* nice if it could use some very-often-updated list of known spam, so that, as soon as one person reports it as spam to the entity maintaining the list, then the rest of the servers out there would know about it within, say, a couple of hours. Having it also be able to spot e-mail viruses would be a plus, too. o If it *did* find some suspected spam or virus, it would avoid placing it in user's inbox and, instead, insert a message stating that a suspected virus or spam was caught. Additionally, it should be able to place the suspected messages in some mail folder like "spam" or something so that the user can go look to see if it was possibly legitimate. Anything out there like this yet? - Joe