Email Formats
{
"mx": [
"40 d103501b.ess.barracudanetworks.com.",
"30 d103501a.ess.barracudanetworks.com."
],
"spf": [
"v=spf1 a ip4:199.188.128.0/24 ip4:199.188.129.0/24 include:spf.ess.barracudanetworks.com include:spf.mandrillapp.com include:_spf.samanage.com ~all"
]
}