Delete scheduled emails by batchId or messageId
Delete scheduled batch of emails by batchId or single scheduled email by messageId
The API key should be passed in the request headers as api-key for authentication.
The batchId of scheduled emails batch (must be a valid UUIDv4) or the messageId of scheduled email (enclosed in angle brackets with @ sign, e.g. <...@domain>).
Scheduled email(s) deleted