RE: How do you stop outgoing spam?

["Al Rowland" <alan_r1 () corp earthlink net>]

Final comment on this subject (I promise) :)

How many (more) protocols are we willing to cripple in the name of
fighting spam?

Best regards,
_________________________
Alan Rowland


-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Iljitsch van Beijnum
Sent: Monday, September 09, 2002 10:23 AM
To: Hank Nussbacher
Cc: nanog () merit edu
Subject: Re: How do you stop outgoing spam?



On Mon, 9 Sep 2002, Hank Nussbacher wrote:

> Looking for automatic off-the-shelf solution.  Not something that 
> requires a NOC to constantly update a Cisco ACL.

Correct me if I'm wrong, but the web (ok, most of it) has been running
on TCP port 80 for quite a while now. So if you limit outgoing TCP
packets to port 80 (and probably some variations, such as HTTP+SSL) to a
few kbps, regardless of their destination, you don't hurt legitimate
users except some very rare cases such as HTTP uploads but you make life
less fun for spammers.