As sending to those list is restricted (to fight spam), I have set an
explicit Reply-to to ipcop-devel list for those lists.
So if you feel the need to reply to a message addressed to one of those
three lists, ipcop-devel will be preselected for the reply.
For ipcop-announce, I could have set ipcop-user as the default reply but I
may miss one message to ipcop-user that I should see in ipcop-devel.