Email Formats

{
"mx": [
"10 d194891a.ess.barracudanetworks.com.",
"20 d194891b.ess.barracudanetworks.com."
],
"spf": [
"v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all"
]
}