问Microsoft Graph API邮件消息:是否有从MIME而不是草稿创建收件箱消息的选项？

EN

// Create a new message (Original MIME)
newMessage = (Message) graphServiceClient
        .customRequest(String.format("/users/%s/messages/", USER_EMAIL), Message.class)
        .buildRequest(new HeaderOption("Content-Type", "text/plain"))
        .post(Base64.encodeBase64(IOUtils.toByteArray(
            Objects.requireNonNull(
                this.getClass().getClassLoader().getResourceAsStream(
                    MIME_MAIL_WITH_ATTACHMENTS)))));

//flag newMessage as draft (despite that newMessage has the original headers, after this update they become different from the original)                   
newMessage.singleValueExtendedProperties = setDraftFalse();

  private SingleValueLegacyExtendedPropertyCollectionPage setDraftFalse() {
    final SingleValueLegacyExtendedProperty prop = new SingleValueLegacyExtendedProperty();
    prop.id = "Integer 0x0E07";
    prop.value = "4";

    final SingleValueLegacyExtendedPropertyCollectionResponse response = new SingleValueLegacyExtendedPropertyCollectionResponse();
    response.value = new ArrayList<SingleValueLegacyExtendedProperty>();
    response.value.add(prop);
    return new SingleValueLegacyExtendedPropertyCollectionPage(
        response, null);
  }

// Post the message updated 
graphServiceClient.me().messages().buildRequest().post(newMessage);