USENET is a network of servers that exchange messages posted by users. Each server is connected to a number of other hosts, which are called its 'peers', and transmits to all the others every message it receives from another server or from a local user. When a server receives a message from one of its peer, it checks whether it is acceptable according to the server policy and otherwise rejects it. If the message contains errors in the format, the post is accepted anyway but a warning is issued. If all goes well, the message is accepted and made available to users.
The graphs below show how many messages per second were sent to this server by its peers during the last day, week, month, and year. These graphs do not show the number of messages posted by users of this server but the whole amount of USENET articles posted through all remote servers and transmitted to this host by its peers.