I company I do some work for is looking at spending a whole lot of money on a product from sendmail.com that offers an smtp gateway with spam filtering and anti-virus.
I'm thinking they could save a lot of money by doing it themselves using Redhat. I've searched the archives and certainly found stuff on spam, like using Procmail, but I have some questions that would clear up some confusion for me if anyone has the time to answer. 1) If I run procmail do I need to run sendmail or will procmail do everything? ie, receive mail, process it for spam, then forward to another mail server, like Exchange, Lotus Notes, or even another sendmail server for delivery to the user. 2) I'm also thinking they should use DNSBL so I guess that means using rblcheck? Would this then be using Sendmail, Procmail, AND rblcheck? 3) I see procmail mentioned a lot. Anyone think there is a better way of doing it? 4) Is there a open-source or inexpensive anti-virus solution available for smtp servers? For it to be worth it, I figure any mail that gets tagged as spam or containing a virus will need to be held somewhere for someone to go through it. For example, to make sure it really is spam. This would need to be easy to do, it could be just a normal user like an HR person who has to do this. It will also need to be fairly easy to update the spam filters to adjust for email that gets through. I apologize if this exact question has been asked before. I would appreciate any feedback you have or suggestions you may have. Thanks, James -- redhat-list mailing list unsubscribe mailto:redhat-list-request@;redhat.com?subject=unsubscribe https://listman.redhat.com/mailman/listinfo/redhat-list
