Email Authentication
megaphone.fm
SPF
passDeclares which servers may send mail for this domain.
v=spf1 a include:mailgun.org include:aspmx.pardot.com include:spf.mandrillapp.com ~all
DKIM
passCryptographic signature on outbound mail (selector: google).
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCSiZTnXPysNqgPjX0hSeHC8wVY62ooFHCcC/Jo8TtWRNMoO75qdRUT2qnuF3+gc4/NI2qWMy0yMYqliLHviLMNeKzWjkOaR3VaVHrSuDf+8WSgaWk0HJS5cDStqjknBpd8tmdQDXbSUE8WRUxTzQuWVUmMqU83kMrSygzqmunNiwIDAQAB
DMARC
warningTells receivers what to do with mail that fails SPF/DKIM. Policy: none.
v=DMARC1; p=none
Mail Servers (MX)
1 aspmx.l.google.com
5 alt2.aspmx.l.google.com
5 alt1.aspmx.l.google.com
10 alt3.aspmx.l.google.com
10 alt4.aspmx.l.google.com