Free SPF Record Checker
Instantly verify your SPF record, count DNS lookups, and identify misconfigurations — all in one free tool.
We'll retrieve and analyze the live SPF record from DNS for your domain.
What the SPF Checker Analyzes
SPF Record Verification
Retrieves and displays the live SPF record from DNS, confirming which mail servers are authorized to send on behalf of your domain.
Status & Validation
Checks syntax, mechanism usage, and qualifier correctness according to RFC 7208 so you can spot and fix issues before they impact deliverability.
DNS Lookup Count
Counts the exact number of DNS lookups and warns you if you're approaching or exceeding the RFC-mandated 10-lookup limit.
Authorized IPs & Mechanisms
Breaks down every ip4, ip6, include, a, and mx mechanism so you can see exactly which servers are permitted to send email.
Why Use the Free SPF Checker?
Improved Email Deliverability
Correctly configured SPF records reduce bounce rates and help your emails land in the inbox instead of the spam folder.
Enhanced Email Security
Prevent spoofing and phishing attacks by verifying that only authorized servers can send email from your domain.
Compliance with Standards
Gmail, Outlook, and Yahoo require proper SPF. Our tool checks your record against RFC 7208 and industry best practices.
User-Friendly Results
Clear, actionable output with error alerts, lookup counts, and recommendations — no DNS expertise required.
Too many DNS lookups?
AutoSPF automatically flattens your SPF record to stay within the 10-lookup limit. Setup takes 60 seconds.
World-Class Support for Your SPF Needs
"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.)
"Great service and great support"
AutoSPF was easy to initially set up on our own and a great cost effective entry into spf flattening. Needed our first support assistance today and got great response including a video demonstrating the issue I was trying to solve, a quick fix, and more detailed followup.
Greg F.
Mid-Market (51-1000 emp.)
"Robust and useful product with incredible support"
AutoSPF is a simple tool to solve a significant problem. It does it so very well without any issues. Additionally, the support is very professional and goes above and beyond to help resolve any email-related issues for their customers.
Verified User
Insurance · Mid-Market (51-1000 emp.)