Domains with DNS TXT v=spf1 a mx ip4:51.91.186.58 include:spf.npnservers.net include:spf.mydomainprovider.com -all

There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:51.91.186.58 include:spf.npnservers.net include:spf.mydomainprovider.com -all.

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