Comment 11 for bug 493997

I tried to encode the message in utf8 and got the same traceback. the traceback is :
Traceback (most recent call last):
  File "/home/sisalpuser/openerp/dev5/server/bin/netsvc.py", line 247, in dispatch
    result = LocalService(service_name)(method, *params)
  File "/home/sisalpuser/openerp/dev5/server/bin/netsvc.py", line 76, in __call__
    return getattr(self, method)(*params)
  File "/home/sisalpuser/openerp/dev5/server/bin/service/web_services.py", line 577, in execute
    res = service.execute(db, uid, object, method, *args)
  File "/home/sisalpuser/openerp/dev5/server/bin/osv/osv.py", line 58, in wrapper
    return f(self, dbname, *args, **kwargs)
  File "/home/sisalpuser/openerp/dev5/server/bin/osv/osv.py", line 119, in execute
    res = pool.execute_cr(cr, uid, obj, method, *args, **kw)
  File "/home/sisalpuser/openerp/dev5/server/bin/osv/osv.py", line 111, in execute_cr
    return getattr(object, method)(cr, uid, *args, **kw)
  File "/home/sisalpuser/openerp/dev5/server/bin/addons/poweremail/poweremail_mailbox.py", line 152, in complete_mail
    self.pool.get('poweremail.core_accounts').get_fullmail(cr, uid, id, context)
  File "/home/sisalpuser/openerp/dev5/server/bin/addons/poweremail/poweremail_core.py", line 973, in get_fullmail
    server_ref, mailid, context)
  File "/home/sisalpuser/openerp/dev5/server/bin/addons/poweremail/poweremail_core.py", line 730, in complete_mail
    parsed_mail = self.get_payloads(mail)
  File "/home/sisalpuser/openerp/dev5/server/bin/addons/poweremail/poweremail_core.py", line 1050, in get_payloads
    parsed_mail['text'] = tools.ustr(part.get_payload(decode=True)) # decode=True to decode a MIME message
  File "/home/sisalpuser/openerp/dev5/server/bin/tools/misc.py", line 746, in ustr
    raise UnicodeError('unable de to convert %r' % (orig,))
UnicodeError: unable de to convert "t\xe9st utf8\r\n\r\n-- \r\nDominique Chabord - SISalp\r\nLogiciel libre pour l'entreprise : Gestion (ERP) et applications web2\r\n18 avenue Beauregard 74960 Cran Gevrier\r\n145A rue Alexandre Borrely 83000 Toulon\r\nt\xe9l +33(0)950274960 fax +33(0)955274960 mob +33(0)622616438\r\nhttp://sisalp.fr - http://sisalp.org - http://bdll.fr\r\n\r\n"