Author Topic: SMTP spam filter (Read 293 times)

Apache · « **on:** May 14, 2003, 08:04:22 AM »

Anyone have a recommendation for an SMTP server (Exchange 2000) filter app?

AKIron · « **Reply #1 on:** May 14, 2003, 08:11:23 AM »

I've found a pretty good filtering service reasonably priced.

http://www.appriver.com/

devious · « **Reply #2 on:** May 14, 2003, 10:11:22 AM »

You might wanna try SpamAssassin (google for links). Had a more than decent review in a c't of late.

Apache · « **Reply #3 on:** May 14, 2003, 11:53:43 AM »

Thanks guys.

I'm currently using iHateSpam server edition but the admin created blacklists don't appear to work.

Also, I'm hesitant to use 3rd party monitoring systems. The FBI makes us and the vendor jump through so many hoops, it becomes too costly. Running the stuff on our servers is the most cost affective at the moment.

devious · « **Reply #4 on:** May 14, 2003, 03:04:13 PM »

You can just filter it yourself.

Take all the mails on the server, and have them run through a script thas scores them.

"P***s enlargement" scores 15

A known spammer address (you can get those adresses on the net, they`re compiled by anti-spam guys) scores 20

"Make money fast" scores 15

...

Now, look at the generated scores. The ones which exceed a given score are forwarded to a spam-gathering account or if the score is way up there, deleted immediately.

This is how commercial software works

Vulcan · « **Reply #5 on:** May 14, 2003, 03:25:25 PM »

I'm using SpamAssassin thats built into Kerio Mailserver. Its great.