Email Formats
{
"mx": [
"1 usb-smtp-inbound-2.mimecast.com.",
"1 usb-smtp-inbound-1.mimecast.com."
],
"spf": [
"v=spf1 ip4:65.199.155.131 ip4:65.199.155.132 ip4:64.238.200.216 ip4:50.200.229.34 ip4:66.194.64.130 ip4:168.245.74.187 include:spf.rpost.net include:spf.etouches.com include:usb._netblocks.mimecast.com a -all"
]
}