Changes to Get a mailbox submission

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

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

removed the required property allOf[subschema #2]/data/envelope/mail_from/email from the response with the 200 status

removed the required property allOf[subschema #2]/data/envelope/mail_from/parameters from the response with the 200 status

removed MailboxSubmissionEnvelopeAddress subschema #2 from the allOf[subschema #2]/data/envelope/rcpt_to/items response property allOf list for the response status 200

added MailboxSubmissionEnvelopeAddress subschema #2 to the allOf[subschema #2]/data/envelope/mail_from response property anyOf list for the response status 200

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

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

the endpoint scheme security oauth2 was added to the API

added the new optional query request parameter mailbox_id