Outbound message search
documentedSearch outbound messages (per server) with filters like recipient, tag, status, and date range.
GET /messages/outboundMessagesno implementation yet0 runsInput
count*
Count of outbound messages to return
50
offset*
Pagination offset
0
recipient
Filter by recipient email
recipient@example.com
fromemail
Filter by sender email
sender@example.com
tag
Filter by tag
welcome
status
Filter by status
sent
todate
Filter by end date (YYYY-MM-DDThh:mm:ss)
2025-12-31T23:59:59
fromdate
Filter by start date (YYYY-MM-DDThh:mm:ss)
2025-01-01T00:00:00
subject
Filter by email subject
Order
messagestream
Filter by message stream ID
Outbound
Calls Postmark as you (your API key is your account); keychains.dev holds the credentials.