SPF (Sender Policy Framework)

TTL
SPF SPFv1
Qualifier Mechanism Target / value Valid Details
+ Pass ip4
+ Pass ip4
+ Pass ip4
+ Pass ip4
~ Softfail all
20m

DNSSEC Next Secure

TTL
NSEC
spf-mindtickle.firstsource.com ["NSEC", "RRSIG", "TXT"]
10m