Domains with DNS TXT v=spf1 a mx include:spf.mandrillapp.com include:_spf.hostnet.nl include:cust-spf.exacttarget.com
There is 1 domain that have DNS TXT set to v=spf1 a mx include:spf.mandrillapp.com include:_spf.hostnet.nl include:cust-spf.exacttarget.com.