DNS & Email Trust
medium Severity
Free Check
SPF Record Validation
Validates that your domain publishes an active Sender Policy Framework (SPF) record to authorize legitimate outbound mail servers.
Why It Matters
Without SPF, spammers can send forged phishing emails appearing to originate directly from your company domain.
How We Check This
We query DNS TXT records for v=spf1 declarations and inspect include directives.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
# DNS TXT Record at root apex: v=spf1 include:_spf.google.com ~all
Frequently Asked Questions
What happens if I have multiple SPF records?
Having multiple SPF records is invalid according to RFC 7208 and causes mail servers to reject all emails.