DNS PTR lookup deprecated?

Asked Aug 13 '21 at 11:34

Active Aug 13 '21 at 11:34

Viewed 717 times

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.

asked Aug 13 '21 at 11:34

Adam

1

It is not the DNS PTR lookup that is deprecated, but rather its use in conjunction with SPF records. :-) – Lasse Michael Mølgaard Aug 13 '21 at 11:50
1

See here: https://dmarcian.com/ptr-mechanisms-in-spf-records/ – Lasse Michael Mølgaard Aug 13 '21 at 11:51
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? – Adam Aug 13 '21 at 13:59

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