Email Formats
{
"mx": [
"10 usb-smtp-inbound-2.mimecast.com.",
"10 usb-smtp-inbound-1.mimecast.com."
],
"spf": [
"v=spf1 include:usb._netblocks.mimecast.com ip4:52.129.19.114 ip4:207.166.92.11 ip4:207.166.95.11 ip4:149.72.234.222 ip4:159.183.178.215 ip4:149.72.174.233 ip4:149.72.251.116 include:mailcontrol.com include:sendgrid.net -all"
]
}