Domains with DNS TXT v=spf1 include:spf.protection.outlook.com a:mailrelay.hbscloudservices.com include:sendgrid.net ip4:199.168.255.210 ~all

There are 11 domains that have DNS TXT set to v=spf1 include:spf.protection.outlook.com a:mailrelay.hbscloudservices.com include:sendgrid.net ip4:199.168.255.210 ~all. The top 11 records ordered by domain rank are listed below.

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