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DNS PTR lookup deprecated?

ar flag

When I use dmarcanalyzer to check my domain I get the message:

Warning : You shouldn't use PTR lookups as they are deprecated

My record looks like this: v=spf1 ptr:samplemail.com ip4:191.13.174.145 ip4:191.13.174.146 a:samplemail.com ip4:81.211.16.14 ~all

What part exactly is deprecated? I tried Googling but all I get are sites where I can do a PTR record lookup or unclear (to me) examaples.

us flag
It is not the DNS PTR lookup that is deprecated, but rather its use in conjunction with SPF records. :-)
us flag
See here: https://dmarcian.com/ptr-mechanisms-in-spf-records/
Adam avatar
ar flag
Ok, so this works now `v=spf1 ip4:191.13.174.145 ~all`, however I tried Googling how to add a PTR record but found no real examples. From your 1st comment it still looks like I need one right? What format does it have?
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