Thanks for reading!

I already solved it myself:

In dovecot.conf replace

service managesieve-login {
    inet_listener sieve {
        # Listen on localhost (ipv4)
        address = 127.0.0.1
        port = 4190
    }
}

by

service managesieve-login {
    inet_listener sieve {
        # Listen on localhost (ipv4)
        address = myserver.mydomain.mytld
        port = 4190
    }
}

Best regards
Armin
_______________________________________________________________

Am 17.08.2020 um 11:29 schrieb armin.v...@mmlab.de:
Hi!

Since around 14 days we experience issues with Vacation and Forward functions. Hitting the green diskette button on the web interface's Vacation configuration page, the user will be returned the error message "Service temporarily unavailable".

In the sogo.log I get the following entries whenever I hit the green save button:

###################################################################
Aug 17 10:07:39 sogod [2204]: [ERROR] <0x0x55e3f4c92210[SOGoSieveManager]> Sieve connection failed on sieve://myserver.mydomain.mytld:4190/?tls=YES Aug 17 10:07:39 sogod [2204]: 192.168.120.198 "POST /SOGo/so/mytest.user@mydomain.mytld/Preferences/save HTTP/1.0" 503 46/4770 0.140 - - -2788K - 18
####################################################################

On my web research I found this thread https://www.mail-archive.com/users@sogo.nu/msg29875.html which helped me to solve some error messages in the sogo.log like the following. The solution was to replace the parameters

SOGoSieveServer = "sieve://127.0.0.1:4190/?tls=YES";
SOGoIMAPServer  = = "imap://127.0.0.1:143/";

by

SOGoSieveServer = "sieve://myserver.mydomain.mytld:4190/?tls=YES";
SOGoIMAPServer  = = "imap://myserver.mydomain.mytld:143/";

Background info: We use a wildcard certificate: *.mydomain.mytld

#####################################################################
2020-08-16 22:52:23.344 sogod[2480:2480] SSL(cert_verify_callback): Certificate validation failed 2020-08-16 22:52:23.344 sogod[2480:2480] ERROR(-[NGActiveSSLSocket startTLS]): couldn't setup SSL connection on host 127.0.0.1 (error:00000001:lib(0):func(0):reason(1))... Aug 16 22:52:23 sogod [2480]: <0x0x558c6cf319f0[NGSieveClient]> Could not start TLS.
#######################################################################

Unfortunately the Sieve functions Vacation and Forward still fail. I assume that they fail since the last updates, where the following packages were installed/updated (Note: SELinux is disabled on the server):

######################################################################
[root@myserver ~]# yum history info 115
Loaded plugins: fastestmirror
Transaction ID : 115
Begin time     : Mon Aug  3 18:58:53 2020
Begin rpmdb    : 788:9fcad6b4f57ce8505a220c927ae8cadc1f3069c3
End time       :            19:01:17 2020 (144 seconds)
End rpmdb      : 789:e054d904ca85bfcd08cabd80ce9d52a37d7d0f3a
User           : root <root>
Return-Code    : Success
Command Line   : update -y
Transaction performed with:
     Installed     rpm-4.11.3-43.el7.x86_64                        @base
     Installed     yum-3.4.3-167.el7.centos.noarch                 @base
     Installed     yum-plugin-fastestmirror-1.1.31-54.el7_8.noarch @updates
Packages Altered:
     Updated     ca-certificates-2019.2.32-76.el7_7.noarch @updates
     Update                      2020.2.41-70.0.el7_8.noarch @updates
     Updated     clamav-0.102.3-1.el7.x86_64                          @epel
     Update             0.102.4-1.el7.x86_64                          @epel
     Updated     clamav-filesystem-0.102.3-1.el7.noarch               @epel
     Update                        0.102.4-1.el7.noarch               @epel
     Updated     clamav-lib-0.102.3-1.el7.x86_64                      @epel
     Update                 0.102.4-1.el7.x86_64                      @epel
     Updated     clamav-update-0.102.3-1.el7.x86_64                   @epel
     Update                    0.102.4-1.el7.x86_64                   @epel
     Updated     clamd-0.102.3-1.el7.x86_64                           @epel
     Update            0.102.4-1.el7.x86_64                           @epel
     Updated     dbus-1:1.10.24-13.el7_6.x86_64 @updates
     Update           1:1.10.24-14.el7_8.x86_64 @updates
     Updated     dbus-libs-1:1.10.24-13.el7_6.x86_64 @updates
     Update                1:1.10.24-14.el7_8.x86_64 @updates
     Updated     fail2ban-0.10.5-2.el7.noarch                         @epel
     Update               0.11.1-9.el7.2.noarch                       @epel
     Updated     fail2ban-firewalld-0.10.5-2.el7.noarch               @epel
     Update                         0.11.1-9.el7.2.noarch             @epel
     Updated     fail2ban-sendmail-0.10.5-2.el7.noarch                @epel
     Update                        0.11.1-9.el7.2.noarch              @epel
     Updated     fail2ban-server-0.10.5-2.el7.noarch                  @epel
     Update                      0.11.1-9.el7.2.noarch                @epel
     Updated     grub2-1:2.02-0.81.el7.centos.x86_64                  @base
     Update            1:2.02-0.86.el7.centos.x86_64 @updates
     Updated     grub2-common-1:2.02-0.81.el7.centos.noarch           @base
     Update                   1:2.02-0.86.el7.centos.noarch @updates
     Updated     grub2-pc-1:2.02-0.81.el7.centos.x86_64               @base
     Update               1:2.02-0.86.el7.centos.x86_64 @updates
     Updated     grub2-pc-modules-1:2.02-0.81.el7.centos.noarch       @base
     Update                       1:2.02-0.86.el7.centos.noarch @updates
     Updated     grub2-tools-1:2.02-0.81.el7.centos.x86_64            @base
     Update                  1:2.02-0.86.el7.centos.x86_64 @updates
     Updated     grub2-tools-extra-1:2.02-0.81.el7.centos.x86_64      @base
     Update                        1:2.02-0.86.el7.centos.x86_64 @updates
     Updated     grub2-tools-minimal-1:2.02-0.81.el7.centos.x86_64    @base
     Update                          1:2.02-0.86.el7.centos.x86_64 @updates
     Updated     kernel-headers-3.10.0-1127.10.1.el7.x86_64 @updates
     Update                     3.10.0-1127.18.2.el7.x86_64 @updates
     Updated     kernel-tools-3.10.0-1127.10.1.el7.x86_64 @updates
     Update                   3.10.0-1127.18.2.el7.x86_64 @updates
     Updated     kernel-tools-libs-3.10.0-1127.10.1.el7.x86_64 @updates
     Update                        3.10.0-1127.18.2.el7.x86_64 @updates
     Dep-Install libsodium-1.0.18-1.el7.x86_64                        @epel
     Updated     microcode_ctl-2:2.1-61.6.el7_8.x86_64 @updates
     Update                    2:2.1-61.10.el7_8.x86_64 @updates
     Updated     munin-common-2.0.54-1.el7.noarch                     @epel
     Update                   2.0.63-1.el7.noarch                     @epel
     Updated     munin-node-2.0.54-1.el7.noarch                       @epel
     Update                 2.0.63-1.el7.noarch                       @epel
     Updated     ntpdate-4.2.6p5-29.el7.centos.x86_64                 @base
     Update              4.2.6p5-29.el7.centos.2.x86_64 @updates
     Updated     python-perf-3.10.0-1127.10.1.el7.x86_64 @updates
     Update                  3.10.0-1127.18.2.el7.x86_64 @updates
     Updated     python2-acme-1.4.0-2.el7.noarch                      @epel
     Update                   1.6.0-1.el7.noarch                      @epel
     Updated     rsyslog-8.24.0-52.el7.x86_64                         @base
     Update              8.24.0-52.el7_8.2.x86_64 @updates
     Updated     selinux-policy-3.13.1-266.el7.noarch                 @base
     Update                     3.13.1-266.el7_8.1.noarch @updates
     Updated     selinux-policy-targeted-3.13.1-266.el7.noarch        @base
     Update                              3.13.1-266.el7_8.1.noarch @updates
     Updated     sogo-4.3.2.20200612-1.el7.x86_64                     @SOGo
     Update           4.3.2.20200803-1.el7.x86_64                     @SOGo
     Updated     sogo-activesync-4.3.2.20200612-1.el7.x86_64          @SOGo
     Update                      4.3.2.20200803-1.el7.x86_64          @SOGo
     Updated     sogo-ealarms-notify-4.3.2.20200612-1.el7.x86_64      @SOGo
     Update                          4.3.2.20200803-1.el7.x86_64      @SOGo
     Updated     sogo-tool-4.3.2.20200612-1.el7.x86_64                @SOGo
     Update                4.3.2.20200803-1.el7.x86_64                @SOGo
     Updated     sope49-appserver-4.9-20200603_1664.el7.1.x86_64      @SOGo
     Update                       4.9-20200731_1664.el7.1.x86_64      @SOGo
     Updated     sope49-cards-4.3.2.20200612-1.el7.x86_64             @SOGo
     Update                   4.3.2.20200803-1.el7.x86_64             @SOGo
     Updated     sope49-core-4.9-20200603_1664.el7.1.x86_64           @SOGo
     Update                  4.9-20200731_1664.el7.1.x86_64           @SOGo
     Updated     sope49-gdl1-4.9-20200603_1664.el7.1.x86_64           @SOGo
     Update                  4.9-20200731_1664.el7.1.x86_64           @SOGo
     Updated     sope49-gdl1-contentstore-4.3.2.20200612-1.el7.x86_64 @SOGo
     Update                               4.3.2.20200803-1.el7.x86_64 @SOGo
     Updated     sope49-gdl1-mysql-4.9-20200603_1664.el7.1.x86_64     @SOGo
     Update                        4.9-20200731_1664.el7.1.x86_64     @SOGo
     Updated     sope49-ldap-4.9-20200603_1664.el7.1.x86_64           @SOGo
     Update                  4.9-20200731_1664.el7.1.x86_64           @SOGo
     Updated     sope49-mime-4.9-20200603_1664.el7.1.x86_64           @SOGo
     Update                  4.9-20200731_1664.el7.1.x86_64           @SOGo
     Updated     sope49-sbjson-2.3.1-20200603_1664.el7.1.x86_64       @SOGo
     Update                    2.3.1-20200731_1664.el7.1.x86_64       @SOGo
     Updated     sope49-xml-4.9-20200603_1664.el7.1.x86_64            @SOGo
     Update                 4.9-20200731_1664.el7.1.x86_64            @SOGo
     Updated     systemd-219-73.el7_8.6.x86_64 @updates
     Update              219-73.el7_8.8.x86_64 @updates
     Updated     systemd-libs-219-73.el7_8.6.x86_64 @updates
     Update                   219-73.el7_8.8.x86_64 @updates
     Updated     systemd-python-219-73.el7_8.6.x86_64 @updates
     Update                     219-73.el7_8.8.x86_64 @updates
     Updated     systemd-sysv-219-73.el7_8.6.x86_64 @updates
     Update                   219-73.el7_8.8.x86_64 @updates
#################################################################

Anybody an idea, what to do in order to track down the Sieve issue? Arte there further logs I could invetigate for instance?

Thanks a lot!

Best regards
Armin

__________ Information from mm-lab IT security __________The message was checked by ESET Mail Security.

__________ Information from mm-lab IT security __________The message was 
checked by ESET Mail Security.
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