Domains with DNS TXT v=spf1 a mx ip4:172.104.253.171 include:relay.mailchannels.net include:_spf.google.com include:spf.protection.outlook.com include:spf.sendinblue.com ~all

There are 28 domains that have DNS TXT set to v=spf1 a mx ip4:172.104.253.171 include:relay.mailchannels.net include:_spf.google.com include:spf.protection.outlook.com include:spf.sendinblue.com ~all. The top 28 records ordered by domain rank are listed below.