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 ip4:146.20.86.8 ip4:204.232.172.40 ip4:72.32.58.145 ip4:72.3.226.152 ip4:216.215.124.111 ip4:38.122.192.152/29 ip4:216.215.124.96/27 ip4:139.60.0.0/22 include:emailsrvr.com include:_spf.salesforce.com include:spf\" \".protection.outlook.com ~all"
]
}