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There is 1 domain that have DNS TXT set to v=spf1 ip4:212.17.56.66 ip4:91.142.103.103 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:sendgrid.net ~all.

Top Domains with TXT set to v=spf1 ip4:212.17.56.66 ip4:91.142.103.103 include:spf.protection.outlook.com include:_netblocks.mimecast.com include:sendgrid.net ~all