DMARC
DMARC is used to protect your email from email spoofing. DMARC use SPF and DKIM record to validate your email.
DMARC is a TXT record added in your domain DNS.
DMARC record look like
v=DMARC1;p=POLICY_HERE;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];rf=afrf
p=POLICY_HERE
This specifies what to do with incoming email that fails DMARC.
Valid options are none, quarantine and reject.
p=none – used for monitoring. If DMARC fails, the remote mail server will send a mail to “rua” or “ruf” tags specified in the DMARC record.
p=quarantine – tell the recipient mail server to put the message in the SPAM folder if DMARC fails.
p=reject – reject mail if DMARC fails.
rf=afrf – Specify the type of report you will get.
Reject Emails that fail DKIM/SPF check
v=DMARC1; p=reject; rua=mailto:[email protected]
Filter and Reject Only 95% mails
v=DMARC1; p=reject; pct=95; rua=mailto:[email protected]
Quarantine Emails that fail DKIM/SPF check
v=DMARC1; p=quarantine; rua=mailto:[email protected]
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