Re: amazon.com multiple SPF records

[Jonathan Leist via NANOG <nanog () nanog org>]

SPF 2.0 was used to designate a SenderID policy. It was experimental and
never saw widespread adoption.

On Mon, Jun 7, 2021 at 1:19 PM Jean St-Laurent via NANOG <nanog () nanog org>
wrote:

> What is spf2.0/pra ?
>
>
>
> Is this new?
>
>
>
> Jean
>
>
>
> *From:* NANOG <nanog-bounces+jean=ddostest.me () nanog org> *On Behalf Of *Alec
> Peterson
> *Sent:* June 7, 2021 10:35 AM
> *To:* Brad Barnett <lists () l8r net>
> *Cc:* nanog () nanog org
> *Subject:* Re: amazon.com multiple SPF records
>
>
>
> Hmm, are you sure?
>
>
>
> [ec2-user@ip-10-0-0-50 ~]$ dig amazon.com txt +short|grep spf
> "v=spf1 include:spf1.amazon.com include:spf2.amazon.com include:
> amazonses.com -all"
> "spf2.0/pra include:spf1.amazon.com include:spf2.amazon.com include:
> amazonses.com -all"
> [ec2-user@ip-10-0-0-50 ~]$
>
>
>
> On Mon, Jun 7, 2021 at 7:22 AM Brad Barnett <lists () l8r net> wrote:
>
>
> If anyone at Amazon is paying attention, you have duplicate spf1 records
> for amazon.com:
>
> # dig -t TXT amazon.com | grep spf
> amazon.com.             281     IN      TXT     "spf2.0/pra include:
> spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all"
> amazon.com.             281     IN      TXT     "v=spf1 include:
> amazon.com include:spf1.amazon.com include:spf2.amazon.com include:
> amazonses.com -all"
> amazon.com.             281     IN      TXT     "v=spf1 include:
> spf1.amazon.com include:spf2.amazon.com include:amazonses.com -all"
>
> It's causing mail deliverability issues, so users cannot reset their
> password, or even get OTP codes reliably.
>
> (I don't know where else to post, as whois/arin contacts aren't
> responding, and I can't even imagine trying to go through other methods
> of support...)

-- 
Jonathan Leist
Senior Systems Engineer