code: def purge(gandi, email, background, force, alias):
      
      login, domain = email
      if alias:
          if not force:
              proceed = click.confirm('Are you sure to purge all aliases for '
                                      'mailbox %s@%s ?' % (login, domain))
              if not proceed:
                  return
          result = gandi.mail.set_alias(domain, login, [])
      else:
          if not force:
              proceed = click.confirm('Are you sure to purge mailbox %s@%s ?'
                                      % (login, domain))
              if not proceed:
                  return
          result = gandi.mail.purge(domain, login, background)
  
      return result
docs: Purge a mailbox.