nanog mailing list archives
Re: Arrogant RBL list maintainers
From: William Herrin <herrin-nanog () dirtside com>
Date: Wed, 9 Dec 2009 11:57:29 -0500
On Wed, Dec 9, 2009 at 10:18 AM, Sven Olaf Kamphuis <sven () cyberbunker com> wrote:
We've noticed that Trend Micro "mail-abuse.com" just "assumes" ips are dynamic by default, because they just assume that working, rfc compliant, reverse dns that just-so-happens to be automatically generated would indicate dynamic ip space.
Sven, Which is it? By default or because it looks automatically generated? By default would seem to be a problem. Automatically generated, not so much. If you haven't made the effort to set up and secure a mail server then you shouldn't be talking smtp to the hosts mail-abuse.com is used to protect. If you haven't bothered to set the reverse DNS to match your server's name then you haven't made the effort, at least not with a modicum of competence. Regards, Bill Herrin -- William D. Herrin ................ herrin () dirtside com bill () herrin us 3005 Crane Dr. ...................... Web: <http://bill.herrin.us/> Falls Church, VA 22042-3004
Current thread:
- Arrogant RBL list maintainers Sven Olaf Kamphuis (Dec 09)
- Re: Arrogant RBL list maintainers William Herrin (Dec 09)
- Re: Arrogant RBL list maintainers Mike Lieman (Dec 09)
- Re: Arrogant RBL list maintainers Patrick Muldoon (Dec 09)
- Re: Arrogant RBL list maintainers Seth Mattinen (Dec 09)
- Re: Arrogant RBL list maintainers Jon Lewis (Dec 09)
- Re: Arrogant RBL list maintainers Christopher Morrow (Dec 09)
- Re: Arrogant RBL list maintainers Mike Lieman (Dec 09)
- Re: Arrogant RBL list maintainers Michael Holstein (Dec 09)
- Re: Arrogant RBL list maintainers Seth Mattinen (Dec 09)
- Re: Arrogant RBL list maintainers Michael Holstein (Dec 09)
- Re: Arrogant RBL list maintainers Seth Mattinen (Dec 09)
- Re: Arrogant RBL list maintainers Ken Chase (Dec 09)
- Re: Arrogant RBL list maintainers Seth Mattinen (Dec 09)
- Re: Arrogant RBL list maintainers William Herrin (Dec 09)