Domains with DNS TXT v=spf1 include:_netblocks.mimecast.com include:spf.mandrillapp.com include:outboundmail.blackbaud.net -all
There is 1 domain that have DNS TXT set to v=spf1 include:_netblocks.mimecast.com include:spf.mandrillapp.com include:outboundmail.blackbaud.net -all.