nanog mailing list archives
Re: Arrogant RBL list maintainers
From: Suresh Ramasubramanian <ops.lists () gmail com>
Date: Wed, 16 Dec 2009 13:00:42 +0530
Security by obscurity, in this day and age? :) On Wed, Dec 16, 2009 at 11:42 AM, James Hess <mysidia () gmail com> wrote:
As is common for many domains. Spammers coming in by scanning large ranges of IPs, have no pointer to report the mailserver they discovered is @example.com inbound (or outbound) mail. Since the RDNS domain is different, and in fact generic, which helps avoid assisting the spammer in identifying the IP as an inbound mail server.
-- Suresh Ramasubramanian (ops.lists () gmail com)
Current thread:
- Re: best practices for PTR naming and whois (was, sadly, Re: Arrogant RBL list maintainers), (continued)
- Re: best practices for PTR naming and whois (was, sadly, Re: Arrogant RBL list maintainers) Michael Thomas (Dec 10)
- Re: best practices for PTR naming and whois (was, sadly, Re: Arrogant RBL list maintainers) Steven Champeon (Dec 10)
- Re: Arrogant RBL list maintainers Michelle Sullivan (Dec 16)
- Re: Arrogant RBL list maintainers Steven Champeon (Dec 16)
- Re: Arrogant RBL list maintainers Mike Lieman (Dec 16)
- Re: Arrogant RBL list maintainers Steven Champeon (Dec 17)
- Re: Arrogant RBL list maintainers Michael Holstein (Dec 17)
- Re: Arrogant RBL list maintainers James Hess (Dec 15)
- Re: Arrogant RBL list maintainers Suresh Ramasubramanian (Dec 15)
- Re: Arrogant RBL list maintainers Adam Armstrong (Dec 16)
- Re: Arrogant RBL list maintainers Mike Lieman (Dec 16)
- Re: Arrogant RBL list maintainers William Herrin (Dec 16)
- Re: Arrogant RBL list maintainers Valdis . Kletnieks (Dec 16)
- Re: Arrogant RBL list maintainers Jack Bates (Dec 16)
- Re: Arrogant RBL list maintainers Matthew Petach (Dec 16)
- Re: Arrogant RBL list maintainers Jack Bates (Dec 16)
- Re: Arrogant RBL list maintainers Valdis . Kletnieks (Dec 16)
- Re: Arrogant RBL list maintainers Matthew Petach (Dec 16)