SPF DNS lookup
Check a domain's SPF record.
Enter a domain to see its Sender Policy Framework record and confirm whether SPF is in place for outbound email.
What the mechanisms mean
An SPF record begins with v=spf1 and lists the senders your domain trusts. Here are the ones you'll see most often, in plain English.
includeTrust the senders listed in another domain's SPF record — typical for third-party email platforms such as Google, Mailchimp, or Amazon SES.ip4 / ip6Authorise specific addresses or CIDR ranges directly.mxAuthorise the mail exchangers already published in your MX records.-allReject mail from anyone not listed above — the strictest ending, and the one you want once you're confident the record is complete.~allSoft-fail unlisted senders. Useful while you're rolling a change out.often temporary