In the headers of an email it says:

google.com: domain of transitioning @.nl does not designate ****:*::****::* as permitted sender

We need this mail to be spam-free.

I know we have to add this IP(?) to the DNS-records as a txt but what kind of IP is it, and what would the txt record look like?


You need to add proper SPF record in your DNS zone file for syntax of this record setup refer to:-openspf

The spf record is like:-"v=spf1 mx -all" to allow domain's MX's to send mail for the domain and prohibit all others.

  • Oke, the reference is pretty clear, thanks! I guess de IP I've got is an IPv6 than? – Tim Baas Sep 12 '12 at 12:04
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    I dont know about your ip address whether it is ipv4 or ipv6.The syntax for both is given in my link i sent you.you can check whether your ip is ipv4 or ipv6 at:-ip-lookup.net – achal tomar Sep 12 '12 at 12:25
  • Got it, it's IPv6.. I got it to work, thanks! – Tim Baas Sep 12 '12 at 12:58
  • you are welcome! – achal tomar Sep 12 '12 at 14:25

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