18 May 2026 · DMARC Engine · 1 min read
A standard domain reaches enforced p=reject in about a week of monitored rollout. The exact time depends on how many services send mail as your domain.
Knowledge base
How long does setup take?
Initial setup takes minutes: add your domain and publish one delegation record. Reaching full p=reject enforcement safely typically takes a few weeks of monitoring.
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Run a free DMARC scan, then let us take you to enforced p=reject with no email outage.