DNS & Email Trust
medium Severity
Free Check
SPF Policy Enforcement Strength
Evaluates the terminal qualifier of your SPF record (-all hardfail vs ~all softfail vs +all).
Why It Matters
Using +all or ?all allows anyone on the internet to send emails claiming to be from your domain.
How We Check This
We check whether the record ends with -all (strict hardfail) or ~all (softfail).
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
v=spf1 include:mailgun.org -all
Frequently Asked Questions
Why do many organizations use ~all instead of -all?
Softfail (~all) is commonly used during email migration to avoid dropping misconfigured legitimate outbound sources.