Unable to access HTTP/HTTPS endpoints with various services

  • Good day, I am currently evaluating the usage of Kopano and so far I am very impressed! I’ve managed to get a working installation based on sockets however I am unable to have success with HTTP/HTTPS endpoints. While Kopano Gateway and Webapp work, I cannot get dagent, spamd, spooler, search to connect to the server with the following errors. Can you give some insight as to what I am doing wrong?

    I have tried this repeatedly with nightly builds going back for the past 3 weeks. Debian Buster.


    server_listen = *:236

    dagent.cfg - NOT WORKING

    server_socket = http://localhost:236


    2020-05-28T06:24:39.138240: [kopano-dagent|T8885] [error  ] HrLogon server "http://localhost:236" user "SYSTEM": logon failed
    2020-05-28T06:24:39.138289: [kopano-dagent|T8885] [error  ] Access denied or connection failed for user "SYSTEM" using socket "http://localhost:236": logon failed (80040111)
    2020-05-28T06:24:39.138385: [kopano-dagent|T8885] [debug  ] Current uid:998 username:kopano
    2020-05-28T06:24:39.138403: [kopano-dagent|T8885] [error  ] void* HandlerLMTP(void*): HrGetSession failed: logon failed (80040111)
    2020-05-28T06:24:39.138410: [kopano-dagent|T8885] [debug  ] < 421 internal error: GetSession failed
    2020-05-28T06:24:39.138455: [kopano-dagent|T8885] [info   ] LMTP thread exiting

    gateway.cfg - WORKING (this is interesting as I am not prefixing the protocol)

    server_socket = localhost:236

    spamd.cfg - NOT WORKING

    server_socket = http://localhost:236


    2020-05-28 06:27:19,266 - spamd - INFO - starting spamd
    2020-05-28 06:27:21,540 - spamd - INFO - stopping spamd
    2020-05-28 06:27:22,541 - spamd - ERROR - Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/kopano/server.py", line 320, in __init__
      File "/usr/lib/python3/dist-packages/MAPI/Util/__init__.py", line 72, in OpenECSession
        admin.ConfigureMsgService(uid, 0, 0, profprops)
      File "/usr/lib/python3/dist-packages/MAPICore.py", line 1661, in ConfigureMsgService
        return _MAPICore.IMsgServiceAdmin_ConfigureMsgService(self, lpUID, ulUIParam, ulFlags, cValues)
    MAPI.Struct.MAPIErrorLogonFailed: MAPI error 80040111 (MAPI_E_LOGON_FAILED)
    During handling of the above exception, another exception occurred:
    Traceback (most recent call last):
      File "/usr/lib/python3/dist-packages/kopano/service.py", line 182, in start
        config=self.config, service=self)
      File "/usr/lib/python3/dist-packages/kopano/service.py", line 101, in _daemonize
        _daemon_helper(func, service, log)
      File "/usr/lib/python3/dist-packages/kopano/service.py", line 46, in _daemon_helper
      File "/usr/lib/python3/dist-packages/kopano_spamd/__init__.py", line 34, in main
        server = self.server
      File "/usr/lib/python3/dist-packages/kopano/service.py", line 167, in server
      File "/usr/lib/python3/dist-packages/kopano/server.py", line 332, in __init__
        password incorrect')
    kopano.errors.LogonError: Could not logon to server: username or password incorrect

    spooler.cfg WORKING

    server_socket = http://localhost:236


    2020-05-28T06:29:07.500891: [=======] Starting kopano-spooler version 10.0.5 (pid 9641 uid 0)
    2020-05-28T06:29:07.500978: [kopano-spooler|T9641] [info   ] Coredump status left at system default.
    2020-05-28T06:29:07.501349: [kopano-spooler|T9641] [debug  ] Reexecing /usr/sbin/kopano-spooler
    2020-05-28T06:29:07.512611: [=======] Starting kopano-spooler version 10.0.5 (pid 9641 uid 998)
    2020-05-28T06:29:07.512698: [kopano-spooler|T9641] [info   ] Coredump status left at system default.
    2020-05-28T06:29:07.520198: [ 9641] [info   ] Starting statscollector
    2020-05-28T06:29:07.520246: [ 9641] [debug  ] Using SMTP server: mta-selfdesign-dev-app, port 25
    2020-05-28T06:29:07.522698: [ 9641] [error  ] HrLogon server "http://localhost:236" user "SYSTEM": logon failed
    2020-05-28T06:29:07.522745: [ 9641] [error  ] Unable to open admin session: logon failed (80040111)
    2020-05-28T06:29:07.522758: [ 9641] [warning] Server connection lost. Reconnecting in 3 seconds...

    Webapp WORKING

    define("DEFAULT_SERVER", "http://localhost:236");
  • Kopano

    Hi @tiredofit,

    some components (like spooler, dagent, search) need to perform a login on their own with kopano-server to get access. When not using a unix socket, this is done through the means of https and ssl client certificates.

    This is explained in the manual at https://documentation.kopano.io/kopanocore_administrator_manual/special_kc_configurations.html#running-kc-components-beyond-localhost.

    Since this lead to some confusion a few weeks ago, there are components that do not log in on their own, but rather a user logs in through them (like kopano webapp for example). For these you do not need/should not use ssl client certificates as this would mean that the connection is implicitly elevated to an admin session without further password checks (because the connection is already authenticated through the ssl cert).

  • Thanks @fbartels - This aligns with what I was thinking with being allowed to login via webapp and gateway due to the passing of my own credentials. I will figure this out. I have incorrectly assumed that I could use http without the need for a certificate on the same box so will focus my efforts on https!

  • 90% there - All with the exception of Search now connect over a secure channel.
    I noted that someone else raised an issue to this which seems to be exactly the way I am doing things.

    Just to confirm that I am on track here:


    server_socket = https://server:237
    sslkey_file = /certs/core/search.pem
    server_bind_name =
    ssl_private_key_file = /certs/core/search-bind.pem
    ssl_certificate_file = /certs/core/public/search-bind-public.pem


    search_enabled = yes
    search_socket = https://search:238

    I believe after learning about the HTTPS client certificates I have the sslkey_file component correct, but am not entirely sure I have the bind certs correct. I’ve made the assumption that they are x509 certificates and that the server should be able to read the “bind” certificate in the public folder, yet get presented with a SYSTEM logon error.

    All of my certificates are generated the same way, and after following the instruction in the manpage to generate a keypair for the bind pair I still get presented with a system logon error which not much else to go on.

    Any tips?

  • Kopano

    Hi @tiredofit,

    without trying it out myself, but it reads like you simply switched the meaning of some of the config options.

    sslkey_file (and additionally sslkey_pass) are used to authenticate the connection towards kopano-server.

    ssl_private_key_file and ssl_certificate_file are used for searches own https endpoint.

    I would argue that within your own network you do not really need to make search listen on a https endpoint, as this one is only used for transport encryption.

  • Agreed, not entirely necessary except when on a local system yet Multiserver, I can see how this would be required.

    Just to wrap my head further around this, the Search options (not related to connecting to Kopano Server) are similar to how gateway works - They are services meant to be exposed to the internet and use a standard cert/key pair and don’t rely on client certificates. If so I’ll keep plugging away and focus on the Kopano Server connection which is the one that is causing me the SYSTEM user logon grief.

  • Login as SYSTEM(admin) is only possible with AF_LOCAL socket or https transport.