Domains with DNS TXT v=spf1 a mx include:_spf.yellowyard.nl include:server.mtmo.nl include:sendgrid.net include:spf.protection.outlook.com ip4:168.245.113.157 ip4:37.72.9 8.108 -all

There is 1 domain that have DNS TXT set to v=spf1 a mx include:_spf.yellowyard.nl include:server.mtmo.nl include:sendgrid.net include:spf.protection.outlook.com ip4:168.245.113.157 ip4:37.72.9 8.108 -all.

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