[发送消息](%E5%8F%91%E9%80%81%E6%B6%88%E6%81%AF.md) [消息有效期](%E6%B6%88%E6%81%AF%E6%9C%89%E6%95%88%E6%9C%9F.md) [消息优先级](%E6%B6%88%E6%81%AF%E4%BC%98%E5%85%88%E7%BA%A7.md) [开启](%E5%BC%80%E5%90%AF.md) [严格顺序](%E4%B8%A5%E6%A0%BC%E9%A1%BA%E5%BA%8F.md) [强顺序](%E5%BC%BA%E9%A1%BA%E5%BA%8F.md)