风险提示:
1. 此为临时邮箱，非永久可用，长期使用请务必修改为自己的邮箱
2. 重要邮件请下载保存，此邮箱将根据硬盘剩余容量，不定期清理邮件
Risk warning:
1. This is a temporary mailbox, not permanently available, please be sure to change to your own mailbox
2. Please download and save important mails, this mailbox will clean up mails from time to time according to the remaining capacity of hard disk.
