curl --location --request GET '//api.postmarkapp.com//stats/outbound' \
--header 'X-Postmark-Server-Token;'
{
"BounceRate": 0,
"Bounced": 0,
"Opens": 0,
"SMTPAPIErrors": 0,
"Sent": 0,
"SpamComplaints": 0,
"SpamComplaintsRate": 0,
"TotalClicks": 0,
"TotalTrackedLinksSent": 0,
"Tracked": 0,
"UniqueLinksClicked": 0,
"UniqueOpens": 0,
"WithClientRecorded": 0,
"WithLinkTracking": 0,
"WithOpenTracking": 0,
"WithPlatformRecorded": 0
}