How to enable and setup basic Spam filtering:

1) Enable RBL check and enter one of the following RBL servers.

- relays.ordb.org
- blacklist.spambag.org
- list.dsbl.org

2) Put in any trusted domains in the Authentic list that you do not want to perform a spam check:

- i.e., @multitech.com

3) If you have a sender blacklist (based on domain name only), you can enable this option and enter the list using domain name:

- i.e., @advertising.com

4) Enable check for null sender

5) Enable check for bad pattern in Sender/Recipient address. Enter the following:

- *%*
- *@[0-9]*.com
- *@[0-9]*.net

6) Enable Reverse DNS Test

7) Enable Message Filtering

8) Enter the following for Filter Attachments:

- scr
- bat
- com
- exe
- pif
- vbs
- hta
- cmd
- dll