The mailing list for listmasters using Sympa

[Wolfgang Bock <address@concealed>]

    Hello,
      
      beside other mailinglist I intend to have a simple announce
      mailinglist as one-way-conversation which means: I as owner
      (address@concealed) send a mail to address@concealed, sympa
      distributes it to several receivers. They should only able to
      answer to the address address@concealed (for example in thunderbird
      either click on reply to or they click on reply to list. Only
      address@concealed should appear as target address.
      
      In my current configuration its not possible. In the mailheaders
      the mailaddress address@concealed appears in X-Loop: in
      List-Post: and  List-Owner: mailto:address@concealed
      
      Where is the place to change the list-configuration, where can I
      set X-Loop List-Post and List-owner to address@concealed resp.
      itsme-request according my intention??
      
      Who can help??
      
      Thanks in advance
      
      Wolfgang