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DMARC

A comprehensive collection of questions and answers about DMARC email authentication from email marketers, experts and technical documentation.
What DNS record type is used for DMARC?
Does DMARC 'relaxed' alignment match a subdomain to the organizational domain?
Does DMARC require both SPF and DKIM to pass?
What does a DMARC 'p=none' policy signify?
Does DMARC policy apply to the header 'From' address?
What is the maximum number of characters allowed in a DMARC TXT record?
Does DMARC validation occur before or after email delivery?
What DMARC tag specifies the reporting format for failure reports?
Is the 'sp' tag mandatory in a DMARC record?
Can DMARC 'rua' reports be sent to a different domain?
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