# File lib/sup/modes/thread-view-mode.rb, line 204
  def unsubscribe_from_list
    m = @message_lines[curpos] or return
    if m.list_unsubscribe && m.list_unsubscribe =~ /<mailto:(.*?)(\?subject=(.*?))?>/
      ComposeMode.spawn_nicely :from => AccountManager.account_for(m.recipient_email), :to => [Person.from_address($1)], :subj => ($3 || "unsubscribe")
    else
      BufferManager.flash "Can't find List-Unsubscribe header for this message."
    end
  end