Email Formats
{
"mx": [
"10 us-smtp-inbound-1.mimecast.com.",
"10 us-smtp-inbound-2.mimecast.com."
],
"spf": [
"v=spf1 mx include:mailgun.org include:spf.smtp2go.com include:us._netblocks.mimecast.com include:spf.constantcontact.com include:shops.shopify.com include:45424582.spf04.hubspotemail.net include:amazonses.com ~all"
]
}