Domains with DNS TXT v=spf1 include:mailgun.org include:spf.messagelabs.com include:_netblocks.mimecast.com include:spf.mandrillapp.com include:spf.uk.exclaimer.net-all
There is 1 domain that have DNS TXT set to v=spf1 include:mailgun.org include:spf.messagelabs.com include:_netblocks.mimecast.com include:spf.mandrillapp.com include:spf.uk.exclaimer.net-all.