Domains with DNS TXT v=spf1 +mx +a +include:spf.prompt.host +include:customer.mailguard.com.au ~all

There is 1 domain that have DNS TXT set to v=spf1 +mx +a +include:spf.prompt.host +include:customer.mailguard.com.au ~all.

Top Domains with TXT set to v=spf1 +mx +a +include:spf.prompt.host +include:customer.mailguard.com.au ~all