Email Formats
{
"mx": [
"10 cluster1.us.messagelabs.com.",
"20 cluster1a.us.messagelabs.com."
],
"spf": [
"v=spf1 include:spf.mta.hdems.com include:spf.protection.outlook.com ip4:124.215.210.0/25 ip4:125.29.56.75/32 ip4:202.144.241.0/24 ip4:202.131.202.80/29 include:spf.messagelabs.com include:cust-spf.exacttarget.com include:_spf.salesforce.com ~all"
]
}