Domains with DNS TXT v=spf1 include:spf.protection.outlook.com include:_u.opentoptouring.com._spf.smart.ondmarc.com -all
There is 1 domain that have DNS TXT set to v=spf1 include:spf.protection.outlook.com include:_u.opentoptouring.com._spf.smart.ondmarc.com -all.