Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:usb._netblocks.mimecast.com include:_spf.google.com include:_spf.salesforce.com\" \" ip4:52.39.3.199 ip4:52.38.223.125 ip4:52.36.28.206 ip4:52.15.113.145 ip4:198.231.15.1 ip4:52.15.128.20 ip4:208.95.133.194 ip4:208.95.133.193 ip4:129.33.240.12 ip4:206.19.48.18 ~all"
]
}