2017-11-23 13:02:25,603 fail2ban                [19394]: ERROR   'dovecot-pop3imap'
Traceback (most recent call last):
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/jails.py", line 77, in __getitem__
    return self._jails[name]
KeyError: 'dovecot-pop3imap'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/bin/fail2ban-server", line 128, in start
    self.__conf["force"])
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 117, in start
    self.__asyncServer.start(sock, force)
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/asyncserver.py", line 158, in start
    asyncore.loop(use_poll=True) # workaround for the "Bad file descriptor" issue on Python 2.7, gh-161
  File "/usr/lib64/python3.4/asyncore.py", line 208, in loop
    poll_fun(timeout, map)
  File "/usr/lib64/python3.4/asyncore.py", line 186, in poll2
    r = pollster.poll(timeout)
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 77, in __sigTERMhandler
    self.quit()
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 138, in quit
    self.stopAllJail()
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 180, in stopAllJail
    self.stopJail(jail)
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 171, in stopJail
    self.delJail(name)
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/server.py", line 154, in delJail
    self.__db.delJail(self.__jails[name])
  File "/usr/lib64/python3.4/site-packages/fail2ban/server/jails.py", line 79, in __getitem__
    raise UnknownJailException(name)
fail2ban.exceptions.UnknownJailException: 'dovecot-pop3imap'