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Hostperl DNS Tools

SPF Checker

Verify a domain's SPF (Sender Policy Framework) record to confirm which servers are authorized to send email on its behalf.

SPF helps prevent attackers from sending email that appears to come from your domain. This tool checks whether your domain's SPF record exists and flags common misconfigurations.

Frequently asked questions

SPF (Sender Policy Framework) is a DNS TXT record that lists which mail servers are allowed to send email on behalf of a domain. Receiving mail servers check this record to help decide whether an incoming message is legitimate or potentially spoofed.

Related tools

DKIM Checker

Look up a DKIM selector record for any domain.

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DMARC Checker

Review a domain's DMARC policy, reporting, and alignment settings.

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MX Lookup

Find mail exchange servers and routing priority for a domain.

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