Docking NetEase cloud letter / high concurrency / easy ten thousand concurrent / stable not to lose the message / IM instant messaging chat software

Advantage: carrying users concurrently online at the same time are in the third party NetEase cloud letter high concurrency easily carry ten thousand people concurrently.
Create Private Groups:You can create any group with unlimited number of members. Group banning: single person ban all banning, forwarding
Group member settings: The group owner can set that members cannot chat privately with each other. The group owner is not restricted.
Group Announcement: Group Announcement. Post a group announcement @ all members to notify everyone.
Red Envelope: Friends Red Envelope , Group Red Envelope. Guessing Message Destruction: Empty the chat record.
Multi-element chat: text, voice, picture, small video, chat room, message notification, @ alert, @ all members.
Background functions: view chat records two-person chat records, view group chat records, view all chat records of a single person
One click to clear all chats in the client User management: login time, login IP, block user, friend circle, change name, permission setting.
Database encryption, sensitive word filtering, etc.