[168222] in North American Network Operators' Group
Re: gmail.com - 550 error for ipv6/PTR ?
daemon@ATHENA.MIT.EDU (Jimmy Hess)
Wed Jan 15 17:19:27 2014
In-Reply-To: <52D6CDFE.3090401@bitfreak.org>
From: Jimmy Hess <mysidia@gmail.com>
Date: Wed, 15 Jan 2014 16:18:25 -0600
To: Darren Pilgrim <nanog@bitfreak.org>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Wed, Jan 15, 2014 at 12:05 PM, Darren Pilgrim <nanog@bitfreak.org> wrote:
> host gmail-smtp-in.l.google.com[2607:f8b0:4002:c01::1a] said: 550-5.7.1
> [2607:fc50:1000:1f00::2 16] Our system has detected that this
> 550-5.7.1 message does not meet IPv6 sending guidelines...
>
I could not reproduce the error during a telnet test.
However, I see a substantial number of outgoing 550 5.7.1 rejects that
look just like that, mixed in with accepted mail to gmail.com.
So it would appear to be transient, but ongoing.
And more than a bit troublesome, since it is shown as a 550 reject, and
delivery therefore will not be deferred and retried appropriately.
Jan 15 15:41:29 [...] Failed "Site gmail.com (2607:f8b0:4002:c01::1a) said
after data sent: 550 5.7.1 more information. q48si1281225yhb.127 - gsmtp
550-5.7.1 [2607:f360:0:1f0::40:2f00 12] Our system has detected that
this"
--
-JH
