nanog mailing list archives
Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption")
From: Stephen Satchell <list () satchell net>
Date: Fri, 2 Oct 2015 08:05:03 -0700
On 10/01/2015 08:18 PM, cortana5 () gmail com wrote:
Excuse my probable ignorance of such matters, but would it not then be preferred to create a whitelist of proven Email servers/ip's , and just drop the rest? Granted, one would have to create a process to vet anyone creating a new email server, but would that not be easier then trying to create and maintain new blacklists?
Define "proven e-mail servers and IPs." Just because someone raises their hand and says "I run a mail server" doesn't mean that the hand-raiser doesn't have a ton of people behind him/her who spew spam at a frightening rate. Even when the hand-raiser represents a large company, that's no guarantee of a mail admin with clue or care.
I got started in the personal mail-server game when Pacific Telesys lost control of its mail servers, and ended up with the IPv4 addresses blacklisted to hell. In order to be able to contribute to the Linux Kernal mailing list, I ended up setting up my own Postfix box, and doing everything necessary to be identified as following Best Practices regarding mail. Good training for later, it turns out.
When I became the mail admin for a Web hosting company, I had to work like hell to (1) clean up the mail, and (2) convincing all the blacklists that I had successfully terminated the spammers.
SPEWS, even. A dedicated-server customer was providing DNS service to spammers, which resulted in my company's entire /21 being blacklisted.
I went through a private hell re-jiggering the web host mail system (Plesk, CPanel, among other web hosting products) to be able to control both inbound and outbound spam. But I did it. ALso, satisfied AOL, Yahoo, and other mailhost companies to accept my mail. Not to mention providing custom levels of spam control for my customers -- some wanted no spam blocks, others wanted no spam. No middle ground.
Current thread:
- RE: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption"), (continued)
- RE: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Frank Bulk (Oct 03)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Rob McEwen (Oct 03)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") John Levine (Oct 03)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Barry Shein (Oct 04)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") William Herrin (Oct 03)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Owen DeLong (Oct 03)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Owen DeLong (Oct 02)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") cortana5 () gmail com (Oct 02)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Rob McEwen (Oct 01)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force Joe Greco (Oct 02)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Stephen Satchell (Oct 02)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") Måns Nilsson (Oct 06)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") George Michaelson (Oct 06)
- Re: How to wish you hadn't forced ipv6 adoption (was "How to force rapid ipv6 adoption") John Levine (Oct 07)
- Re: How to force rapid ipv6 adoption Valdis . Kletnieks (Oct 02)
- RE: How to force rapid ipv6 adoption Steve Mikulasik (Oct 02)
- Re: How to force rapid ipv6 adoption Cryptographrix (Oct 02)
- Re: How to force rapid ipv6 adoption Stephen Satchell (Oct 02)
- Re: How to force rapid ipv6 adoption Cryptographrix (Oct 02)
- Re: How to force rapid ipv6 adoption George, Wes (Oct 02)
- Re: How to force rapid ipv6 adoption Cryptographrix (Oct 02)