Enter a domain to see MX servers, SPF, DMARC and DKIM records.
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MX, SPF, DMARC, DKIM Checker Online
The 101IP tool instantly checks the email DNS records of any domain â MX servers, SPF, DMARC and DKIM keys. Essential for diagnosing email deliverability issues.
What the tool checks
MX â mail exchange servers and their priority;
SPF â list of IPs allowed to send email on behalf of the domain;
DMARC â policy for emails that fail SPF or DKIM validation;
DKIM â presence of public keys for email signing.
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