[dmarc-discuss] Google & IPv6 SPF check

Jesper Knudsen jkn at scanmailx.com
Fri Jun 8 06:35:30 PDT 2012

Personally I prefer to spell it out for the receiver so they do not need to
make any additional DNS lookups to determine whether SPF is OK or not. I
your case I would add the ip4: and ip6: statements with your two respective
IP addresses - Maybe even drop the MX as also resolves to the same IPs.

v=spf1 ip4: ip6:2001:41d0:2:30db::207 -all


-----Original Message-----
From: dmarc-discuss-bounces at blackops.org
[mailto:dmarc-discuss-bounces at blackops.org] On Behalf Of Stef Simoens
Sent: 8. juni 2012 01:13
To: dmarc-discuss at dmarc.org
Subject: [dmarc-discuss] Google & IPv6 SPF check


I'm not sure if this is the good platform to raise this kind of issues, but
I'm sure there are some Google Mail people on this list.

The google.com reports of June 5th and June 6th show my IPv6 IP as sender,
but also reveal that the SPF check failed. E-mails sent with the IPv4
address look OK (SPF check OK).

To my knowledge, my SPF and DNS set-up (domain bgs.org; v=spf1 mx
a:claudette.bgs.org -all; claudette.bgs.org A / AAAA
2001:41d0:2:30db::207) should work for both IPv4 and IPv6.

Anyone else having the same issue with IPv6?

Kind regards,

Stef Simoens
BGS.org hostmaster
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