Email Formats
{
"mx": [
"10 openkey-co.p10.spamhero.com.",
"20 openkey-co.p20.spamhero.net.",
"30 openkey-co.p30.spamhero.net.",
"40 openkey-co.p40.spamhero.net."
],
"spf": [
"v=spf1 mx ip4:103.151.192.0/23 ip4:185.12.80.0/22 ip4:188.172.128.0/20 ip4:192.161.144.0/20 ip4:216.198.0.0/18 include:sendgrid.net include:spf.protection.outlook.com include:21507239.spf06.hubspotemail.net include:_spf.google.com ~all"
]
}