Domains with DNS TXT v=spf1 a mx ip4:134.119.228.53 include:smtprelaypool.ispgateway.de include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 a mx ip4:134.119.228.53 include:smtprelaypool.ispgateway.de include:spf.protection.outlook.com -all.