Free SPF Record Lookup
Enter any domain to retrieve its live SPF record from DNS. See the full record, count DNS lookups, expand every nested include, and flag RFC 7208 violations.
We'll retrieve and analyze the live SPF record from DNS for your domain.
What Is an SPF Record Lookup?
An SPF record lookup queries DNS for the Sender Policy Framework TXT record published at a domain's apex. The record declares which IP addresses, servers, and third-party services are authorized to send email on behalf of that domain. Receiving mail servers perform this lookup during every inbound SMTP transaction to verify the sender's identity.
This tool goes beyond a simple DNS query — it recursively expands every include, redirect, and nested mechanism, counts the total DNS lookups against the RFC 7208 limit of 10, and flags any syntax errors, void lookups, or deprecated mechanisms.
Over the 10-lookup limit?
AutoSPF flattens your SPF record and keeps it updated every 15 minutes. Enterprise SLAs, SSO/SAML, audit logs, and DNS rollback included.
What Our Customers Say
"AutoSPF Flattens SPF Records Seamlessly & Keeps Changes Logged - I am quite pleased with the product"
It does what it promises to do, and does it very well. I appreciate that it keeps a log of changes made, which prevents many mistakes. A client's SPF record would have way too many lookups, but AutoSPF makes that problem go away. The length of the SPF record is typically not the issue; it's the amount of lookups in the record that are. AutoSPF "flattens" the record, automatically expanding the defined lookups to IP addresses or ranges. And it auto-updates the record when the un-flattened lookups change.
Peter J.
President · Small-Business (50 or fewer emp.)
"Helped us go beyond capacity"
AutoSPF did exactly as described, it helped us get past our 10 lookup limit. Afterwards, we hit another limit regarding overall capacity and when contacted, they quickly provided us with a new solution to eliminate capacity issues entirely going forward, so now we can add as many SPF records as needed. They also provided us with a personalized support video explaining their new method in its entirety using our instance as the example.
Verified User
Financial Services · Mid-Market (51-1000 emp.)