Querying SPF Records to Identify Authorized Email Sending IPs
SPF (Sender Policy Framework) is a DNS record that specifies which mail servers are authorized to send email on behalf of a domain. To verify the SPF configuration for the domain example.com and identfiy its permitted IP ranges, follow these steps:
Step 1: Query the Domain's SPF Record
Use DNS lookup tools like dig or nslookup to retrieve the S ...
Posted on Sat, 17 Oct 2026 16:10:07 +0000 by eekeek