Domains with DNS TXT v=spf1 mx include:spf.protection.outlook.com a:mxfilter1.dctwo.com.au a:mxfilter2.dctwo.com.au -all
There is 1 domain that have DNS TXT set to v=spf1 mx include:spf.protection.outlook.com a:mxfilter1.dctwo.com.au a:mxfilter2.dctwo.com.au -all.