[168218] in North American Network Operators' Group
Re: gmail.com - 550 error for ipv6/PTR ?
daemon@ATHENA.MIT.EDU (Franck Martin)
Wed Jan 15 15:57:19 2014
From: Franck Martin <fmartin@linkedin.com>
To: Darren Pilgrim <nanog@bitfreak.org>
Date: Wed, 15 Jan 2014 20:57:05 +0000
In-Reply-To: <52D6D9E5.8090402@bitfreak.org>
Cc: "<nanog@nanog.org>" <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
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On Jan 15, 2014, at 10:56 AM, Darren Pilgrim <nanog@bitfreak.org> wrote:
> On 1/15/2014 10:14 AM, Franck Martin wrote:
>>=20
>> On Jan 15, 2014, at 10:05 AM, Darren Pilgrim <nanog@bitfreak.org
>> <mailto:nanog@bitfreak.org>>
>> wrote:
>>=20
>>> On 1/14/2014 4:06 PM, Brandon Applegate wrote:
>>>> Just saw this in a message tonight. No idea if this is a transient =
error
>>>> or not.
>>>>=20
>>>> ---
>>>> host gmail-smtp-in.l.google.com <http://gmail-smtp-in.l.google.com>
>>>> [gmail-smtp-in.l.google.com
>>>> <http://gmail-smtp-in.l.google.com>][2607:f8b0:4002:c01::1a]
>>>> said: 550-5.7.1 [2607:ff70:11::11] Our system has detected that =
this
>>>> message does not 550-5.7.1 meet IPv6 sending guidelines regarding =
PTR
>>>> records and authentication 550-5.7.1 . Please review 550-5.7.1
>>>> https://support.google.com/mail/?p=3Dipv6_authentication_error
>>>> [support.google.com <http://support.google.com>] for more 550
>>>> 5.7.1 information. t26si2290895yhl.255 - gsmtp (in reply to end =
of
>>>> DATA
>>>> command)
>>>=20
>>> I saw a number of these as well but in my case the bracketed IP
>>> addresses were malformed. For example:
>>>=20
>>> host gmail-smtp-in.l.google.com
>>> <http://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...
>>>=20
>>=20
>> https://support.google.com/mail/answer/81126?hl=3Den#authentication
>=20
> My point was that Google told me it rejected "2607:fc50:1000:1f00::2 =
16". In this case, 2607:fc50:1000:1f00::2 is the correct address, but =
it appeared (to me) that Google's data was somehow corrupt.
>=20
> I'm pretty sure the IPv6 address format doesn't allow spaces. ;)
>=20
Ah yes, the confusion with the separator between IP and ports.
IPv4:port
IPv6.port
That gets a lot of regex confused...
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