DMARC

Introduction

Avanan provides DMARC Management as an add-on to help manage DMARC and SPF.

DMARC Management helps organizations make sure all legitimate senders are allowed so that you can confidently apply a restrictive policy tag in your organization's DMARC DNS record.

The organization's DMARC DNS record - specifically the p tag - states what should be done with emails that fail authentication checks.

Three possible values to the p tag in the DMARC record:

  • none - recipients should report failures, but should also deliver emails allegedly from the domain even if they fail authentication.

  • quarantine - recipients should quarantine emails that fail authentication. They would usually be marked as spam.

  • reject - recipients should not even accept the email and never deliver it to their end users.

Since this is usually a difficult task, most organizations do not have a DMARC policy (p) tag at all or assign the value none to it.