spf-esec.heimdalsecurity.com DNS history

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SOA +1 -0
+ heimdalsecurity.com 900 SOA ns-1860.awsdns-40.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
TXT +1 -0
+ spf-esec.heimdalsecurity.com 300 TXT "v=spf1 ip4:20.50.183.144/29 ip4:20.88.177.208/29 ip4:20.50.183.155 ~all"