Email Formats
{
"mx": [
"10 usb-smtp-inbound-2.mimecast.com.",
"10 usb-smtp-inbound-1.mimecast.com."
],
"spf": [
"v=spf1 mx ip4:204.232.136.163 ip4:204.232.136.164 ip4:204.232.136.173 ip4:192.203.134.18 include:usb._netblocks.mimecast.com include:sent-via.netsuite.com include:spf.constantcontact.com ip4:208.75.123.0/24 ip4:68.64.190.134 ip4:67.225.229.47 include:_spf\" \".salesforce.com ~all"
]
}