Email Formats
{
"mx": [
"10 mailstream-east.mxrecord.io.",
"10 mailstream-west.mxrecord.io.",
"50 mailstream-central.mxrecord.mx."
],
"spf": [
"v=spf1 include:_spf.mlsend.com include:spf.protection.outlook.com include:mail.zendesk.com include:_spf.google.com include:amazonses.com include:_spf.salesforce.com -all"
]
}