Re: SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

2014-11-02 Thread Darren Pilgrim
On 8/22/2014 7:32 AM, Lorenzo Colitti wrote: Note that from the text it sounds like SPF / DKIM is not strictly required, but it looks like a PTR record is a hard requirement. PTRs are a hard requirement, yes. That's not a problem. All places where you can run a legitimate MX will have

Re: SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

2014-11-02 Thread Philipp Kern
On 2014-11-02 09:53, Darren Pilgrim wrote: On 8/22/2014 7:32 AM, Lorenzo Colitti wrote: Note that from the text it sounds like SPF / DKIM is not strictly required, but it looks like a PTR record is a hard requirement. PTRs are a hard requirement, yes. That's not a problem. All places where

Re: SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

2014-11-02 Thread Marco d'Itri
On Nov 02, Darren Pilgrim dar...@bluerosetech.com wrote: The problem is Google ignores the fact you must not hard fail on DNS. Even if the response is NXDOMAIN, the most you can do is soft bounce because you can not know why you didn't get an RR. Gmail hard bounces on such errors No, not

Re: SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

2014-11-02 Thread Matija Grabnar
On 11/02/2014 06:55 PM, Darren Pilgrim wrote: On 8/22/2014 2:46 AM, Matija Grabnar wrote: So, much as I would LIKE to have reverse IPv6 DNS on my mail servers, in some cases it is just not possible. Can you describe those cases? I can't think of any scenarios where you'd run a

Re: SMTP over IPv6 : gmail classifying nearly all IPv6 mail as spam since 20140818

2014-11-02 Thread Lyle Giese
If the provider won't or is unable to provide reverse for the IPv6 static address you have, it will be sub-optimal for you to continue to advertise and/or use the IPv6 address for SMTP. It's all part of the 'prove it's not a dynamic ip address' and part of the 'proper reverse DNS provides

Some very nice IPv6 growth as measured by Google

2014-11-02 Thread Eric Vyncke (evyncke)
[As a side note, it seems that the European 'google' statistics are now more in line with the expectation] Several countries have recently made good progress dixit Google Apnic (URL are simply a different way of presenting Google data): * US has reached 10%, welcome to the 10%-club *