I need some help with Exchange server settings, I really do not have much time for studying right now, so please help.
I have simple Windows Small Business server 2000 with Exchange and DNS installed.
- what DNS servers should I set in Properties of network connection? (local IP, or remote ISP DNS servers?)
- my exchange server is becoming victim of SPAM attacks. How can I disable anonymous remote delivery and enable authentication with valid username/password ?
- as I receive too much of spam, my BadMail directory (almost 20,000 spams) is growing up, how can I limit its size?
- the delays between sending and receiving from/to local address are quite big - 10-15 minutes. How can I avoid this? - I assume this could be resolved by enabling authentication so that spam could disappear.