On 06/01/2016 07:52 AM, Craig Skinner wrote:
On 2016-06-01 Wed 09:34 AM |, Indunil Jayasooriya wrote:
what does the below record mean?

example.com.    IN    TXT    "v=spf1 mx a -all"


http://www.OpenSPF.Org/SPF_Record_Syntax#a
All the A records for domain are tested.
If the client IP is found among them, this mechanism matches.

Do not trust this documentation, it is misleading and incomplete. The "a" mechanism should also match AAAA records, see https://tools.ietf.org/html/rfc7208#section-5.3

Regards,
Alex.


Your commnets.


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