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If you are saying that the current version does record  
the charset parameters when input comes from email or  
http, then indeed the bug would be fixed to a large extend.  
(My testing was done with a 0.7.x version where  
charset is not recorded.)  
  
In addition I would say that a text/plain attachment  
without charset is incomplete within Roundup as Roundup by   
definition should talk to several systems. So adding a  
guess by default (no matter how it is done technically)  
should be wise. To do the guess best, it would need the 
full information of the input channcel (web, http or 
email). Is this available from the detectors?