Domains with DNS TXT v=spf1 include:mail-sy4aus01on2100.outbound.protection.outlook.com -all

There is 1 domain that have DNS TXT set to v=spf1 include:mail-sy4aus01on2100.outbound.protection.outlook.com -all.

Top Domains with TXT set to v=spf1 include:mail-sy4aus01on2100.outbound.protection.outlook.com -all