Filtering addresses not in the GAL

[larynx1982]

I have Exchange Server running on Win SBS 2003, can I configure it to receive only messages from people that are on my Global Address List and filter (bounce them back) all the rest?

Thanks in advance...

 

[Topkapi]

Yes!

If the question is really what you mean then the easiest way is to not allow any mail from the internet into the Exchange server.

 

[58sniper]

Yes, you can deny accepting email destined for addresses not in the directory. The problem with that is that it can lead to brute force attacks.

Recipient Filtering

http://www.msexchange.org/tutorials/Sender-Recipient-Filtering.html

You'll also want to configure tarpitting to reduce the effectiveness of brute force attacks.

SMTP tar pit feature for Microsoft Windows Server 2003

http://support.microsoft.com/kb/842851

Pat Richard, MCSE MCSA:Messaging CNA
Microsoft Exchange MVP

 

[larynx1982]

What I meant was the I only want to receive emails from people that I have in my address list.
For example, if john@aol.com is not in my list I don't want to receive any emails from him, I want them to be bounced back.

Is there a way to do that?

 

[58sniper]

Well, your original post said the Global Address List, which is what prompted my response.



Pat Richard, MCSE MCSA:Messaging CNA
Microsoft Exchange MVP

 

[larynx1982]

sorry for the misunderstanding, do you know of any way to accomplish this?