Where to find it
Select DNS Tools in the left navigation, then the SPF Scanner tab. Enter a domain and select Check SPF.Reading the results
The SPF Record card shows a Valid or invalid badge, the full record with a copy control, and an advisory line calling out anything worth tightening — for example, “Using ~all (softfail) is good but -all is more strict.” Three figures summarise the record:The ten-lookup limit
SPF allows a maximum of ten DNS lookups when a record is evaluated. Go over it and receiving servers return a permanent error, so your SPF stops working even though the record still looks correct. Everyinclude: costs at least one lookup, and an include that itself contains includes costs more. DNS Lookups is the figure to watch as you add senders.
Mechanisms
Each mechanism is listed with the result it produces and the provider it refers to:- Pass — the sender is authorised. Each
include:names the provider it pulls from. - SoftFail — produced by
~all, marking anything not listed above as suspicious but still deliverable. - Fail — produced by
-all, rejecting anything not listed.