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A comment on How to prevent email spoofing, using an unholy combination of silly standards. Parent comment

Re:How to prevent email spoofing, using an unholy combinatio... by dillondoyle on Sunday August 15, 2021 @11:21PM (#28194653)
I didn't know this! Is there an easy tool to check how many chain-on dns lookups happen?

I also typically have at least 2 for clients, including evidently google's 4. so this is important to know!

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Re:How to prevent email spoofing, using an unholy combinatio... by teddyh on Monday August 16, 2021 @04:05AM (#28195957)
> Is there an easy tool to check how many chain-on dns lookups happen?

I use https://www.kitterman.com/spf/validate.html

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Re:How to prevent email spoofing, using an unholy combinatio... by kcolemangt on Sunday August 15, 2021 @11:53PM (#28194790)
https://fraudmarc.com/spf-record-check/

If your spf is too heavy, add universal spf and then watch it work by either sending a test message or rechecking your spf with https://vamsoft.com/support/tools/spf-policy-tester

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Re:How to prevent email spoofing, using an unholy combinatio... by dillondoyle on Monday August 16, 2021 @10:26PM (#28205442)
thank you!!
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