nanog mailing list archives
Re: why IPv6 isn't ready for prime time, SMTP edition
From: Brielle Bruns <bruns () 2mbit com>
Date: Tue, 25 Mar 2014 16:06:54 -0600
On 3/25/14, 3:33 PM, Laszlo Hanyecz wrote:
The usefulness of reverse DNS in IPv6 is dubious. Maybe the idea is to cause enough pain that eventually you fold and get them to host your email too.
Well, like I said, there is nothing wrong with using rdns as part of a score in how legit a message is. Knock off a point or two in Spamassassin, add a few points back because there is SPF records, and another one or two for DKIM...
Google is obviously doing some intelligent filtering on their end to handle incoming spam - why take such a drastic move against rdns when you already do heuristics that can factor it in without risking losing legit mail?
I just finished moving two customers from Google hosted mail to Office 365 hosted Exchange. Even with all the odd quirks and issues that 365 has from time to time, I'm still getting better feedback from my customers. So... no, I'd sooner shut down my mail services then go with Google mail hosting for my primary e-mail address.
But, that's just my opinion. -- Brielle Bruns The Summit Open Source Development Group http://www.sosdg.org / http://www.ahbl.org
Current thread:
- Re: why IPv6 isn't ready for prime time, SMTP edition, (continued)
- Re: why IPv6 isn't ready for prime time, SMTP edition John Levine (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Brielle Bruns (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Jim Popovitch (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition John Levine (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Brielle Bruns (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Paul Ferguson (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Elizabeth Zwicky (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Paul Ferguson (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Laszlo Hanyecz (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Jim Popovitch (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Brielle Bruns (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Tony Finch (Mar 26)
- Re: why IPv6 isn't ready for prime time, SMTP edition John Levine (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Rich Kulawiec (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Laszlo Hanyecz (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Ricky Beam (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition John Levine (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Mark Andrews (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition John R. Levine (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition Mark Andrews (Mar 25)
- Re: why IPv6 isn't ready for prime time, SMTP edition John R. Levine (Mar 25)