nanog mailing list archives
Re: Anti-spam System Idea
From: Sean Donelan <sean () donelan com>
Date: Sun, 15 Feb 2004 16:40:40 -0500 (EST)
On Sun, 15 Feb 2004, Jon R. Kibler wrote:
We find that at least 85% of all spam originates from DHCP addresses. Thus, if a significant number of ISPs would perform port 25 egress filtering, I believe that it would significantly reduce spam, and force criminal spammers to develop completely new spamming technologies.
DialUp Lists (DUL) dns block lists permits you to ignore e-mail from many dynamic IP addresses. You can configure your mail server to do this today without waiting for ISPs to do anything. Like most other "simple" solutions, how effective is it?
Current thread:
- Re: Anti-spam System Idea, (continued)
- Re: Anti-spam System Idea Laurence F. Sheldon, Jr. (Feb 14)
- Re: Anti-spam System Idea Michael Wiacek (Feb 14)
- RE: Anti-spam System Idea Tim Thorpe (Feb 14)
- Re: Anti-spam System Idea Andy Dills (Feb 14)
- Re: Anti-spam System Idea jlewis (Feb 14)
- RE: Anti-spam System Idea Tim Thorpe (Feb 14)
- Re: Anti-spam System Idea Steven Champeon (Feb 14)
- RE: Anti-spam System Idea jlewis (Feb 14)
- RE: Anti-spam System Idea william(at)elan.net (Feb 14)
- Re: Anti-spam System Idea Jon R. Kibler (Feb 15)
- Re: Anti-spam System Idea Sean Donelan (Feb 15)
- Re: Anti-spam System Idea Valdis . Kletnieks (Feb 15)
- Re: Anti-spam System Idea jlewis (Feb 15)
- Re: Anti-spam System Idea Jon R. Kibler (Feb 15)
- Re: Anti-spam System Idea Daniel Reed (Feb 16)
- RE: Anti-spam System Idea Tim Thorpe (Feb 14)
- Re: Anti-spam System Idea Sean Donelan (Feb 15)
- Re: Anti-spam System Idea Valdis . Kletnieks (Feb 15)
- Identifying IP address types Sean Donelan (Feb 15)
- Re: Anti-spam System Idea Jon R. Kibler (Feb 15)
- Re: Anti-spam System Idea Sean Donelan (Feb 15)
- Re: Anti-spam System Idea Jon R. Kibler (Feb 15)