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The original was posted on /r/protonmail by /u/Blaze_07 on 2023-09-28 05:46:57.

Original Title: I have cyber insurance and they routinely scan my domain. I recently switched to Proton and set everything up exactly as instructed. The image below is the result of a recent scan. I have DMARC in place so I don’t understand why they say it is missing. Thoughts? Any way to make SPF less broad?