SPF, DKIM and DMARC explained
The three checks that stop people from faking mail from Maskr's domain.
SPF, DKIM and DMARC are the standard checks receiving servers use to confirm an email really came from the domain it claims. Maskr enforces all three on inbound mail and signs its own outbound mail so it is trusted.
What is a DMARC report?
Large providers such as Google send automated daily summaries of mail seen using a domain. If you ever see a message titled "Report domain: …" with SPF, DKIM and DMARC all passing, that is good news: it means mail from that domain is authenticating correctly.
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