curl --request POST \
  --url https://api.example.com/api/Candidates/jobs/{jobId}/rejection-email \
  --header 'Content-Type: application/json' \
  --data '
{
  "candidateIds": [
    123
  ],
  "templateId": 123,
  "sendDelayTypeId": 123,
  "rejectionMadeViaId": 0,
  "subject": "<string>",
  "body": "<string>",
  "rejectionComments": "<string>"
}
'