Email Formats
{
"mx": [
"10 d269299a.ess.barracudanetworks.com.",
"20 d269299b.ess.barracudanetworks.com."
],
"spf": [
"v=spf1 a mx ip4:158.106.145.98 ip6:2600:4c00:200:35c:3eec:efff:fedc:c8ac ip4:208.79.252.182 include:spf.protection.outlook.com include:spf.ess.barrac\" \"udanetworks.com include:spf.constantcontact.com include:_spf.salesforce.com ~all"
]
}