Domains with DNS TXT v=spf1 ip4:58.96.31.19 inlcude:customer.mailguard.com.au include:spf.protection.outlook.com -all
There is 1 domain that have DNS TXT set to v=spf1 ip4:58.96.31.19 inlcude:customer.mailguard.com.au include:spf.protection.outlook.com -all.