Email Kolab服务未启动/无法发送/接收电子邮件

服务器位于CentOS 7/Kolab 16上，最近进行了更新。更新的相关kolab软件包包括：

Apr 30 01:42:56 Updated: kolab-freebusy-1.1.2-3.63.el7.kolab_16.noarch
Apr 30 01:42:57 Updated: kolab-syncroton-2.3.19-1.3.el7.kolab_16.noarch
Apr 30 01:42:57 Updated: roundcubemail-skin-kolab-0.4.1-10.19.el7.kolab_16.noarch
Apr 30 01:42:58 Updated: roundcubemail-plugin-redundant_attachments-1.4.11.4-1.2.el7.kolab_16.noarch
Apr 30 01:42:59 Updated: roundcubemail-plugin-newmail_notifier-1.4.11.4-1.2.el7.kolab_16.noarch
Apr 30 01:42:59 Updated: roundcubemail-plugin-contextmenu-3.0-14.57.el7.kolab_16.noarch
Apr 30 01:43:18 Updated: guam-0.9.9-2.8.el7.kolab_16.x86_64
Apr 30 01:43:18 Updated: kolab-webadmin-3.2.15-3.1.el7.kolab_16.noarch
Apr 30 01:43:19 Updated: wallace-0.8.19-1.8.el7.kolab_16.noarch
Apr 30 01:43:35 Updated: cyrus-imapd-2.5.15.28-1.22.el7.kolab_16.x86_64
Apr 30 01:43:55 Updated: kolab-server-0.8.19-1.8.el7.kolab_16.noarch
Apr 30 01:43:55 Updated: kolab-saslauthd-0.8.19-1.8.el7.kolab_16.noarch
Apr 30 01:43:56 Updated: postfix-kolab-0.8.19-1.8.el7.kolab_16.noarch

kolabd没有启动。以下是我从状态中看到的：

systemctl status kolabd.service

● kolabd.service - Kolab Groupware Server.
   Loaded: loaded (/usr/lib/systemd/system/kolabd.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since Fri 2021-04-30 18:58:33 UTC; 1h 44min ago
  Process: 1944 ExecStart=/usr/sbin/kolabd $FLAGS --pid-file /run/kolabd/kolabd.pid (code=exited, status=0/SUCCESS)
 Main PID: 1946 (code=exited, status=2)

Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: Starting Kolab Groupware Server....
Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: kolabd.service: Supervising process 1946 which is not our child. We'll most likely not notice when it exits.
Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: Started Kolab Groupware Server..
Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: kolabd.service: main process exited, code=exited, status=2/INVALIDARGUMENT
Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: Unit kolabd.service entered failed state.
Apr 30 18:58:33 xxx.yyy.zzz systemd[1]: kolabd.service failed.

kolab lm报告

cyruslib.CYRUSError:（99，“列表”，“连接未经身份验证”）

kolab saslauthd似乎正在运行，但testsaslauthd-u cyrus admin-p出现以下故障：

0:没有“身份验证失败”

dirsrv似乎正在运行（ns slapd）。电子邮件客户端无法登录，可能是因为：

xxxxxx imaps[2258]：SASL密码验证失败 xxxxxx imaps[2258]：错误登录：[127.0.0.1]未知身份验证+普通+TLS[SASL（-13）：身份验证失败：密码验证失败]

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