Yesterday i upgrade my UCS 4.4 to 5. The most of all is working now again. But one problem exists: my z-push not working anymore.
root@ucs002040:~# univention-app info
UCS: 5.0-2 errata373
Installed: fetchmail=6.3.26 kopano-core=8.7.25.0-1 kopano-webapp=5.3.0.0-1 samba4=4.16 z-push-kopano=2.6.4 4.4/nextcloud=24.0.3-0
I remove z-push, install it again and reboot, but no success. No Mobile Device can access them (The Testpage https://myserver/Microsoft-Server-ActiveSync is empty (they ask for credentials))
univention-app remove z-push-kopano
univention-app install z-push-kopano
In the /var/log/apache2/access.log i find following errors
192.168.x.x -user@companyt.lan [01/Aug/2022:12:29:07 +0200] "GET /Microsoft-Server-ActiveSync HTTP/1.1" 500 786 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:103.0) Gecko/20100101 Firefox/103.0"
And in the /usr/share/z-push/z-push-error.log i found following error:
01/08/2022 12:37:07 [ 5711] [FATAL] [user@company.lan] Fatal error: /usr/share/z-push/lib/utils/utils.php:1193 - Uncaught Error: Call to undefined function mb_detect_encoding() in /usr/share/z-push/lib/utils/utils.php:1193
Stack trace:
#0 /usr/share/z-push/lib/request/request.php(291): Utils::ConvertAuthorizationToUTF8('user@compa...')
#1 /usr/share/z-push/index.php(61): Request::ProcessHeaders()
#2 {main}
thrown (1)