Question 1

Do I need both SPF and DKIM for DMARC to pass?

Accepted Answer

A message DMARC-passes if at least one of SPF or DKIM passes with alignment to the From domain. Deploy both for resilience, then use this checker for the policy record and the SPF Checker for SPF DNS.

Question 2

How long does it take for DNS changes to show here?

Accepted Answer

After you publish or edit _dmarc, wait for DNS TTL/propagation (often minutes to hours). Re-run this checker until the new record appears.

Question 3

Can DMARC prevent my emails from going to spam?

Accepted Answer

Strong DMARC (quarantine/reject with pct=100) plus aligned SPF/DKIM improves trust and deliverability, but inbox placement also depends on reputation, content, and engagement.

Question 4

What does pct mean?

Accepted Answer

pct samples how many failing messages get the full policy. Omit pct or set pct=100 for full enforcement. Values below 100 are treated as a warning in this checker.

Free DMARC Checker & Lookup Tool