There is another issue which might be related. Don't think it's solved: 
https://github.com/systemd/systemd/issues/1347

Am 21.03.2017 um 17:06 schrieb Admin Beckspaced:
> Hi again ;)
>
> thanks a lot for replying. Not sure if this is my issue as it does work
> with with journalmatch in postfix-sasl.conf
>
> journalmatch = _SYSTEMD_UNIT=postfix.service
>
> 2017-03-21 10:09:02,759 fail2ban.filtersystemd  [30179]: INFO Added
> journal match for: '_SYSTEMD_UNIT=postfix.service'
>
> no notice is thrown here in the log.
>
> any more help & hints are welcome ...
>
> Thanks & greetings
> Becki
>
>
> On 21.03.2017 13:34, Johannes Weberhofer wrote:
>> Hi Becki,
>>
>> this issue seems to be related to 
>> https://github.com/systemd/python-systemd/issues/36
>>
>> Best regards,
>> Johannes
>>
>> Am 21.03.2017 um 10:36 schrieb Admin Beckspaced:
>>> Hello there ;)
>>>
>>> just a quick question about dovecot jail and a notice in the fail2ban log
>>>
>>> I'm running fail2ban version 0.9.6 on an openSUSE box 42.1
>>>
>>> I'm using the dovecot jail:
>>>
>>> [dovecot-cx20]
>>>
>>> enabled  = true
>>> filter   = dovecot
>>> port    = pop3,pop3s,imap,imaps
>>> action = %(action_mwl)s
>>> logpath = %(dovecot_log)s
>>> backend = %(dovecot_backend)s
>>> maxretry = 5
>>> bantime = 259200
>>>
>>> and in /filter.d/dovecot.conf I also got the Init section for the
>>> journalmatch:
>>>
>>> [Init]
>>>
>>> journalmatch = _SYSTEMD_UNIT=dovecot.service
>>>
>>> If i start fail2ban the log says:
>>>
>>> 2017-03-21 10:09:02,411 fail2ban.server         [30179]: INFO Changed
>>> logging target to /var/log/fail2ban.log for Fail2ban v0.9.6
>>> 2017-03-21 10:09:02,412 fail2ban.database       [30179]: INFO Connected
>>> to fail2ban persistent database '/var/lib/fail2ban/fail2ban.sqlite3'
>>> ...
>>> 2017-03-21 10:09:02,912 fail2ban.jail           [30179]: INFO Creating
>>> new jail 'dovecot-cx20'
>>> 2017-03-21 10:09:02,913 fail2ban.jail           [30179]: INFO Jail
>>> 'dovecot-cx20' uses systemd {}
>>> 2017-03-21 10:09:02,917 fail2ban.jail           [30179]: INFO Initiated
>>> 'systemd' backend
>>> 2017-03-21 10:09:02,918 fail2ban.filter         [30179]: INFO    Set
>>> maxRetry = 5
>>> 2017-03-21 10:09:02,920 fail2ban.filter         [30179]: INFO    Set
>>> jail log file encoding to UTF-8
>>> 2017-03-21 10:09:02,920 fail2ban.actions        [30179]: INFO    Set
>>> banTime = 259200
>>> 2017-03-21 10:09:02,921 fail2ban.filter         [30179]: INFO    Set
>>> findtime = 600
>>> 2017-03-21 10:09:02,957 fail2ban.filtersystemd  [30179]: INFO Added
>>> journal match for: '_SYSTEMD_UNIT=dovecot.service'
>>> 2017-03-21 10:09:02,978 fail2ban.filtersystemd  [30179]: NOTICE Jail
>>> started without 'journalmatch' set. Jail regexs will be checked against
>>> all journal entries, which is not advised for performance reasons.
>>>
>>> So it seems fail2ban is having an issue with journalmatch for dovecot jail
>>> How can i fix this?
>>>
>>> I also do not receive the log lines in the notification email. i t just
>>> says:
>>>
>>> Lines containing IP:115.202.188.141 in /var/log/mail
>>> but no listing of lines from the log
>>>
>>> I have a similar setup for postfix with journalmatch and there it
>>> doesn't throw an error:
>>>
>>> 2017-03-21 10:09:02,739 fail2ban.jail           [30179]: INFO Creating
>>> new jail 'postfix-sasl-cx20'
>>> 2017-03-21 10:09:02,739 fail2ban.jail           [30179]: INFO Jail
>>> 'postfix-sasl-cx20' uses systemd {}
>>> 2017-03-21 10:09:02,744 fail2ban.jail           [30179]: INFO Initiated
>>> 'systemd' backend
>>> 2017-03-21 10:09:02,746 fail2ban.filter         [30179]: INFO    Set
>>> maxRetry = 5
>>> 2017-03-21 10:09:02,747 fail2ban.filter         [30179]: INFO    Set
>>> jail log file encoding to UTF-8
>>> 2017-03-21 10:09:02,748 fail2ban.actions        [30179]: INFO    Set
>>> banTime = 259200
>>> 2017-03-21 10:09:02,749 fail2ban.filter         [30179]: INFO    Set
>>> findtime = 3600
>>> 2017-03-21 10:09:02,759 fail2ban.filtersystemd  [30179]: INFO Added
>>> journal match for: '_SYSTEMD_UNIT=postfix.service'
>>>
>>> with postfix jail I do receive log lines in the notification email:
>>>
>>> Lines containing IP:46.217.64.108 in /var/log/mail
>>>
>>> 2017-03-21T10:11:39.631356+01:00 cx20 postfix/smtpd[29196]: connect from
>>> unknown[46.217.64.108]
>>> 2017-03-21T10:11:40.311477+01:00 cx20 postfix/smtpd[29196]: NOQUEUE:
>>> reject_warning: RCPT from unknown[46.217.64.108]: 450 4.7.1 Client host
>>> rejected: cannot find your hostname, [46.217.64.108];
>>> from=<jac...@b4pph115.bnr.ca> to=<mota...@sadsadas.de> proto=ESMTP
>>> helo=<[46.217.64.108]>
>>> 2017-03-21T10:11:40.420446+01:00 cx20 postfix/smtpd[29196]: NOQUEUE:
>>> reject: RCPT from unknown[46.217.64.108]: 554 5.7.1 Service unavailable;
>>> Client host [46.217.64.108] blocked using bl.spamcop.net; Blocked - see
>>> http://www.spamcop.net/bl.shtml?46.217.64.108;
>>> from=<jac...@b4pph115.bnr.ca> to=<mota...@sdsad.de> proto=ESMTP
>>> helo=<[46.217.64.108]>
>>>
>>> thanks & greetings
>>> Becki
>>>
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>
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-- 
Johannes Weberhofer
Weberhofer GmbH, Austria, Vienna

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