Free tools
SPF Checker
Validate a domain's SPF record: we check its syntax, follow every include to count DNS lookups against the limit of 10, and grade the policy.
Lookups run in your browser against public DNS (dns.google). Nothing is sent to or stored by MailCraft.
What is SPF?
Sender Policy Framework is a DNS record listing the servers allowed to send email for your domain. Receivers check it on every message; a missing or broken record sends mail to spam. Learn how SPF, DKIM and DMARC work together →