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