| Newsgroup | Return only messages from the 
                newsgroup | (e.g. rec.games.misc, 
                  comp.os.*, *linux*)
 | 
              
                | Subject | Return only messages where the subject 
                  contains |  | 
              
                | Author | Return only messages where the author 
                is |  | 
              
                | Message 
                  ID | Find the message with message ID | (e.g. 
                  moderated-ng-faq-1-983174581@swcp.com)
 | 
              
                | Language | Return 
                  messages written in |  | 
              
                | Message 
                  Dates | Return messages posted | 
              
                |  | Return 
                  messages posted between  and |