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Re:See how DMARC, SPF, and DKIM work interactively by freddieleeman on Monday January 10, 2022 @03:30AM (#29871933)
You can also use https://DMARCtester.com
Re:See how DMARC, SPF, and DKIM work interactively by svdr on Monday January 10, 2022 @04:13AM (#29872210)
This is very well done, but it incorrectly failed validation of my DKIM signature.

I often use https://www.mail-tester.com.

Re:See how DMARC, SPF, and DKIM work interactively by freddieleeman on Monday January 10, 2022 @12:42PM (#29878466)
Please share your email details with [email protected] and we'll have a look to see what is going wrong.