[Mimedefang] OT: Blocking Port 25

[Kenneth Porter]

On Tuesday, January 30, 2007 11:39 AM -0500 "David F. Skoll" 
<dfs at roaringpenguin.com> wrote:

> Actually, I think blocking port 25 by default is an excellent idea
> providing you unblock it if people ask for that.  Since the vast
> majority of computer users never bother to change defaults, blocking port
> 25 by default will remove a huge number of potential botnet spammers.

One might even block all inbound and outbound ports below 1024 except the 
obvious consumer ones like web and POP3 and provide a simple web interface 
to unblock them. That would also block SMB-based attacks.