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DMARC

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

What is the DMARC 'adkim' tag used for?

What DMARC tag specifies forensic reports?

Does the DMARC 'pct' tag affect aggregate reports?

What is the default value for the DMARC 'p' tag?

What DMARC alignment mode is stricter: 'relaxed' or 'strict'?

Does DMARC authenticate the 'From' header directly?

Which DMARC tag specifies the policy for subdomains?

What does the 'ruf' DMARC tag stand for?

Is a DMARC record mandatory for email sending?

Can DMARC policies be applied without an SPF or DKIM record?

What DMARC policy allows for email delivery but marks suspicious emails?

Does the 'ri' DMARC tag control aggregate report intervals in seconds?

What is the DMARC version specified by the 'v' tag?

What DMARC 'fo' tag value requests failure reports for all failures?

Does 'p=quarantine' deliver mail to the inbox or spam folder?

What is the purpose of the 'rf' DMARC tag?

Does a DMARC 'rua' URI require 'mailto:' prefix?

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

Does DMARC prevent domain spoofing directly?

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 'relaxed' alignment match a subdomain to the organizational domain?

What is the impact of removing a DMARC record?

Does DMARC require both SPF and DKIM to pass?

What does a DMARC 'p=none' policy signify?

What is the 'fo' tag value for DMARC aggregate report formatting?

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?

What DMARC policy setting offers the strongest protection?

Does DMARC prevent phishing attacks that use different domains?

What is the default reporting interval for DMARC aggregate reports?

Does DMARC affect inbound email handling?

What is the significance of a missing DMARC record?

Does DMARC report on emails that pass authentication?

What is the difference between 'ruf' and 'rua' DMARC tags?

Does DMARC apply to the envelope 'From' address?

What is the DMARC 'p=reject' policy?

Does DMARC ensure email encryption?

What DMARC tag indicates the policy version?

Does a DMARC 'pct' value of 0 mean no enforcement?

What is the role of the 'dkim-alignment' in DMARC?

Can a DMARC record have multiple 'p' tags?

What specific header does DMARC use for alignment checks?

Does a DMARC 'v=DMARC1' tag validate the version?

What is the primary benefit of deploying DMARC?

What DMARC report format is used for aggregate reports?

Does DMARC validate the originating IP address?

What is the purpose of the 'adkim=s' tag in DMARC?

What does a DMARC record that is 'p=none' and 'pct=100' mean?

Does a DMARC policy apply to emails from subdomains by default?

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