[156068] in North American Network Operators' Group
Re: The End-To-End Internet (was Re: Blocking MX query)
daemon@ATHENA.MIT.EDU (Henry Stryker)
Wed Sep 5 15:07:57 2012
Date: Wed, 05 Sep 2012 12:07:22 -0700
From: Henry Stryker <henry@hup.org>
To: nanog@nanog.org
In-Reply-To: <50477A1E.6030802@mtcc.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 09/05/12 09:13 , Michael Thomas wrote:
> The "I" part of DKIM is "Identified". That's all it promises. It's a
> feature, not a bug, that spammers use it.
Which is why DKIM does not really address any concerns. The spammers
have reduced its value.
I am retired now, but do run my own mail server from home. It is a
challenge. Not all static IP's provided by ISP's are outside of "home
IP groups", so you will find some of them blocked at some large domains.
SPF and DKIM do help, a bit. What I have found really makes the home
MTA possible are
1. a "real" static IP
2. proper DNS (A and PTR; PTR must at least exist)
3. tuning your MTA to respect the restraints of various large ISP's
Lacking 1 & 2, it is just not worth the effort attempting direct
delivery, if you value actual delivery of your email. I would never
even attempt such from a peripatetic laptop.
