Domains with DNS TXT v=spf1 mx a ip4:151.101.66.159 include:spf.greatmail.com ~all

There is 1 domain that have DNS TXT set to v=spf1 mx a ip4:151.101.66.159 include:spf.greatmail.com ~all.

Top Domains with TXT set to v=spf1 mx a ip4:151.101.66.159 include:spf.greatmail.com ~all