Email Formats
{
"mx": [
"50 us-smtp-inbound-1.mimecast.com.",
"40 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 include:_netblocks.mimecast.com include:_spf.billtrust.com include:2995263.spf07.hubspotemail.net ip4:52.2.99.47 ~all"
]
}