According to the regulations of Netease mailbox, if the user has not logged in the mailbox for a long time, exceeding 180 days, the system will recycle the mailbox. Once the mailbox is recycled, all messages, contacts, attachments and other information will be permanently deleted and cannot be recovered. Therefore, if the user's Netease mailbox is recycled, it cannot be recovered. In order to avoid this situation, users are advised to log in to their mailboxes regularly, or set up automatic forwarding function to forward important emails to other mailboxes for backup.