p=quarantine
The DMARC policy asking receivers to treat mail that fails DMARC as suspicious; Google's guide, for example, describes delivery to the spam folder.
What it means
Under p=quarantine the domain owner says mail that fails DMARC is suspect, though it may be legitimate. Receivers decide what that means. Google's DMARC guide describes it as marking the message as spam and delivering it to the spam folder; other systems may hold it in an administrator's quarantine.
RFC 9989 recommends it as the step between p=none and p=reject. A mistake costs less than under reject, since misclassified mail can still be found in spam. It counts as enforcement, and it is the minimum policy BIMI accepts.
Under RFC 7489, owners could combine quarantine with pct to apply it to a share of failing mail. That tag is now historic; t=y requests a step down to none instead.
Example
v=DMARC1; p=quarantine; rua=mailto:dmarc@example.comRelated terms
On this site
Sources
What this definition rests on. The wording is ours; the facts are theirs.
- RFC 9989: Domain-based Message Authentication, Reporting, and Conformance (DMARC), section 4.7rfc-editor.org
- RFC 9989: Domain-based Message Authentication, Reporting, and Conformance (DMARC), section 7.4rfc-editor.org
- Google Workspace Admin Help: Set up DMARCknowledge.workspace.google.com
All 432 terms in the glossaryThe wiki: blocklists and bounce codes