Changes to Get a mailbox message

removed MailboxAddress subschema #2 from the allOf[subschema #2]/data/from response property allOf list for the response status 200

added MailboxAddress subschema #2 to the allOf[subschema #2]/data/from response property anyOf list for the response status 200

added the required property allOf[subschema #2]/data/in_reply_to to the response with the 200 status

added the required property allOf[subschema #2]/data/message_id to the response with the 200 status

added the required property allOf[subschema #2]/data/references to the response with the 200 status

added the required property allOf[subschema #2]/data/reply_to to the response with the 200 status

the allOf[subschema #2]/data response's property type changed from no type to object for status 200

added the optional property allOf[subschema #2]/data/attachments to the response with the 200 status

removed MailboxMessageSummary subschema #2 from the allOf[subschema #2]/data response property allOf list for the response status 200

added the required property allOf[subschema #2]/data/bcc to the response with the 200 status

added the required property allOf[subschema #2]/data/cc to the response with the 200 status

added the required property allOf[subschema #2]/data/flags to the response with the 200 status

added the required property allOf[subschema #2]/data/folder_ids to the response with the 200 status

added the required property allOf[subschema #2]/data/from to the response with the 200 status

added the required property allOf[subschema #2]/data/has_attachments to the response with the 200 status

added the required property allOf[subschema #2]/data/html_body to the response with the 200 status

added the required property allOf[subschema #2]/data/id to the response with the 200 status

added the required property allOf[subschema #2]/data/keywords to the response with the 200 status

added the required property allOf[subschema #2]/data/preview to the response with the 200 status

added the required property allOf[subschema #2]/data/received_at to the response with the 200 status

added the required property allOf[subschema #2]/data/sent_at to the response with the 200 status

added the required property allOf[subschema #2]/data/size_bytes to the response with the 200 status

added the required property allOf[subschema #2]/data/subject to the response with the 200 status

added the required property allOf[subschema #2]/data/text_body to the response with the 200 status

added the required property allOf[subschema #2]/data/thread_id to the response with the 200 status

added the required property allOf[subschema #2]/data/to to the response with the 200 status

the endpoint scheme security oauth2 was added to the API

the response property allOf[subschema #2]/data/allOf[#/components/schemas/MailboxMessageSummary]/attachments became optional for the status 200

the response property allOf[subschema #2]/data/allOf[subschema #2]/attachments became optional for the status 200

added the required property allOf[subschema #2]/data/allOf[#/components/schemas/MailboxMessageSummary]/attachments to the response with the 200 status

added the new optional query request parameter mailbox_id