I like this one from NIST: https://www.had-pilot.com/py/had.html You just send a... | Hacker News

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icebraining on June 21, 2016 | parent | context | favorite | on: SPF, DMARC, and DKIM: How to Keep Your Email Out o...

I like this one from NIST: https://www.had-pilot.com/py/had.html

You just send an email to the address at the bottom and it replies with a bunch of information regarding its SPF, DKIM and/or DMARC.

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