Email Formats

{
"mx": [
"10 cluster1.us.messagelabs.com.",
"20 cluster1a.us.messagelabs.com."
],
"spf": [
"v=spf1 ip4:58.234.207.77 ip4:58.234.207.75 ip4:58.234.207.74 ip4:211.43.13.233 ip4:13.124.111.122 ~all"
]
}