Changes to Send transactional or marketing email

added the new optional request property headers

added the new optional request property trackAs

added the optional property anyOf[subschema #1: Slug-based response]/ignoredHeaders to the response with the 200 status

added the optional property anyOf[subschema #2: Direct content response]/ignoredHeaders to the response with the 200 status

added the optional property anyOf[subschema #2: Direct content response]/transactional to the response with the 200 status

added the optional property issues to the response with the 400 status

added the optional property issues to the response with the 401 status

added the optional property issues to the response with the 404 status

added the optional property issues to the response with the 409 status

added the optional property issues to the response with the 429 status

added the optional property issues to the response with the 500 status

added the optional property issues to the response with the 503 status

the to/oneOf[subschema #2] request property's minItems was increased to 1

added the new optional request property fromEmail

added the new optional request property fromName

added the new optional request property replyProfileId

added the new optional request property replyToName

added the new optional request property senderProfileId

the clickTracking request property default value true was removed

the openTracking request property default value true was removed

added subschema #1: Slug-based response subschema #2: Direct content response to the response body anyOf list for the response status 200

removed subschema #1: Slug-based response subschema #2: Direct content response from the response body oneOf list for the response status 200

added the new optional header request parameter Idempotency-Key

added the non-success response with the status 409

added the non-success response with the status 429

added the non-success response with the status 503

added the optional property oneOf[subschema #1: Slug-based response]/idempotentReplay to the response with the 200 status

added the optional property oneOf[subschema #2: Direct content response]/idempotentReplay to the response with the 200 status

added the optional property retryable to the response with the 400 status

added the optional property retryable to the response with the 401 status

added the optional property retryable to the response with the 404 status

added the optional property retryable to the response with the 500 status

added the optional property code to the response with the 400 status

added the optional property code to the response with the 401 status

added the optional property code to the response with the 404 status

added the optional property code to the response with the 500 status

added the new optional request property attachments/items/contentId

the response property success became optional for the status 400

the response property success became optional for the status 401

the response property success became optional for the status 404

the response property success became optional for the status 500

added the new optional request property trackingSettings

added the optional property oneOf[subschema #1: Slug-based response]/emailType to the response with the 200 status

added the optional property oneOf[subschema #2: Direct content response]/emailType to the response with the 200 status

added the new optional request property emailType

added the new optional request property html

added the new optional request property templateId

added the optional property oneOf[subschema #1: Slug-based response]/emailSendId to the response with the 200 status

added the optional property oneOf[subschema #2: Direct content response]/emailSendId to the response with the 200 status

response property oneOf[subschema #1: Slug-based response]/jobId deprecated

response property oneOf[subschema #2: Direct content response]/jobId deprecated

added the optional property oneOf[subschema #1: Slug-based response]/diagnostics to the response with the 200 status

added the optional property oneOf[subschema #2: Direct content response]/diagnostics to the response with the 200 status

the subscriberExternalId request property's maxLength was set to 255

added the new optional request property bcc

added the new optional request property cc

removed the request property bcc

removed the request property cc

removed the optional property oneOf[subschema #1: Slug-based response]/bcc from the response with the 200 status

removed the optional property oneOf[subschema #1: Slug-based response]/cc from the response with the 200 status

removed the optional property oneOf[subschema #2: Direct content response]/bcc from the response with the 200 status

removed the optional property oneOf[subschema #2: Direct content response]/cc from the response with the 200 status

added the new optional request property subscriberExternalId