Email Formats
{
"mx": [
"10 usb-smtp-inbound-1.mimecast.com.",
"10 usb-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx a ip4:66.205.191.212 ip4:35.248.19.10 ip4:170.40.159.0/28 ip4:199.36.128.0/22 ip4:199.36.128.184/29 ip4:170.40.176.8/29 include:usb._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.psm.knowbe4.com include:emsd1.com -all"
]
}