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DMARC

A comprehensive collection of questions and answers about DMARC email authentication from email marketers, experts and technical documentation.

What is the maximum 'pct' value in a DMARC record?

What is the DMARC 'aspf' tag for?

Can multiple 'rua' URIs be specified in a DMARC record?

What DNS record type is used for DMARC?

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?

What DMARC tag specifies the reporting format for failure reports?

Is the 'sp' tag mandatory in a DMARC record?

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