Maldua Zimbra in my opinion is a good choice.

https://www.cbmailplus.com/download-page/ 

Check out the following on the left:

Trial

Try CbPlus unlimited for a full 30-days period

Once you have it installed on your old Carbonio, try make a backup of all your email accounts you have. Hope it works.

Install CbPlus on new sever and try to restore email accounts you just made a backup of.

You can only try. Good luck.

I try an installation on a new VM with Ubuntu server 24.04 with no success, many error messages during the install ....

and after restarting ... no access to the admin panel.

I an trying with a 22.04 and the install went to end with no "weird" messages, will try to prepare it for replacing

the one running on 20.04 with tons of logs, with such a flow rate I end up fearing for the machine's disks.

The admin panel is workng and I have to recreate users, verify all parameters and a little test, this will take some time.

Regards

JP P

https://www.anahuac.eu/carbonio-zmcontrol-death/

I created a new vm with Ubuntu Server 22.04 and that was successful.

Use either Ubuntu 22.04 or 24.04 Server installation (NOT the minimal version)

Note: looks like 24.04 and higher are listed as of now:

https://ubuntu.com/download/server#manual-install

Also follow:

https://docs.zextras.com/carbonio-ce/html/install/preliminary.html

Follow the steps down to the DNS settings -- including PTR Record step.

The SPF, DMARC and the rest of the steps is not needed as yet. Can be configured later.

Note: People have noticed a problem with login when they upgraded to Carbonio Ce 25.9. So, I don't know

if that also applies to a new installation. Just in case it shows after you install a new Carbonio Ce.

Then on the page you just opened, there is blue radio button that says DOWNLOAD, top right hand side. That will take you to the Telegram website. Download Telegram Desktop and install it.

Thereafter you can, again on the above provided link, click VIEW IN TELEGRAM button. That will then open the Desktop Telegram after you click Open Link in the little pop up window.

Once Telegram is open you should see on the left:

Geral

Instalacao -- click there. then on the right side you see 6 files under Topic info. click on 6 files, there you see October carbonioce_install.sh

Right click and save as. There you should have the latest installation script.

As I said before you really need 32GB of Ram and 8 cores, you might get away with 16GB for the installation.

The physical machine has 64G RAM and 16 cores and runs a Debian Trixie, the virtual machine dedicated to Carbonio has 8Go and 4 cores

and is running Ubuntu 20.04 with KVM. That mail server is only for me and family and to receive some logs from a web server and other services.
The installation on the running machine was done "By hand" using the instructions given in the docs ... and is running since beginning 2024.

For the "new" installation I try it on another physical machine, the virtual machine under KVM with 8Go and 4 cores, i have a try with the script
found in the doc, but with no success with always far too many weird messages ....
If there is another script I will have a try with it.

List and status of services :

systemctl list-unit-files "carbonio*" | tee /var/tmp/list_unit_files.txt

UNIT FILE STATE VENDOR PRESET
carbonio-altermime-config.service disabled enabled
carbonio-antivirus.service disabled enabled
carbonio-appserver-db.service disabled enabled
carbonio-appserver.service disabled enabled
carbonio-certbot.service static enabled
carbonio-clamav-sidecar.service enabled enabled
carbonio-clamav-signature-provider-sidecar.service disabled enabled
carbonio-configd.service disabled enabled
carbonio-docs-connector-sidecar.service enabled enabled
carbonio-docs-connector.service enabled enabled
carbonio-docs-editor-sidecar.service enabled enabled
carbonio-docs-editor.service enabled enabled
carbonio-files-db-sidecar.service disabled enabled
carbonio-files-sidecar.service enabled enabled
carbonio-files-watches.service disabled enabled
carbonio-files.service enabled enabled
carbonio-freshclam.service enabled enabled
carbonio-mailbox-admin-sidecar.service disabled enabled
carbonio-mailbox-nslookup-sidecar.service enabled enabled
carbonio-mailbox-sidecar.service enabled enabled
carbonio-mailthreat.service static enabled
carbonio-memcached.service disabled enabled
carbonio-message-broker-sidecar.service enabled enabled
carbonio-message-broker.service enabled enabled
carbonio-milter.service disabled enabled
carbonio-mta-sidecar.service enabled enabled
carbonio-nginx.service disabled enabled
carbonio-opendkim.service disabled enabled
carbonio-openldap.service disabled enabled
carbonio-policyd.service disabled enabled
carbonio-postfix.service disabled enabled
carbonio-preview-sidecar.service enabled enabled
carbonio-preview.service enabled enabled
carbonio-prometheus-consul-exporter.service enabled enabled
carbonio-prometheus-mysqld-exporter.service enabled enabled
carbonio-prometheus-nginx-exporter.service enabled enabled
carbonio-prometheus-node-exporter.service enabled enabled
carbonio-prometheus-openldap-exporter.service enabled enabled
carbonio-prometheus-postgres-exporter.service enabled enabled
carbonio-prometheus.service enabled enabled
carbonio-proxy-sidecar.service disabled enabled
carbonio-saslauthd.service disabled enabled
carbonio-stats.service disabled enabled
carbonio-storages-sidecar.service enabled enabled
carbonio-storages.service enabled enabled
carbonio-user-management-sidecar.service enabled enabled
carbonio-user-management.service disabled enabled
carbonio.service generated enabled
carbonio-appserver.target disabled enabled
carbonio-directory-server.target disabled enabled
carbonio-mta.target disabled enabled
carbonio-proxy.target disabled enabled
carbonio-certbot.timer enabled enabled

53 unit files listed.

systemctl list-units --type=service carbonio*.service | tee list_unit_services.txt
UNIT LOAD ACTIVE SUB DESCRIPTION
carbonio-clamav-sidecar.service loaded activating auto-restart Carbonio clamav sidecar proxy
carbonio-docs-connector-sidecar.service loaded activating auto-restart Carbonio docs connector sidecar proxy
carbonio-docs-connector.service loaded active running Carbonio docs connector daemon
carbonio-docs-editor-sidecar.service loaded activating auto-restart Carbonio Docs server sidecar proxy
carbonio-docs-editor.service loaded active running Carbonio Docs Server
carbonio-files-sidecar.service loaded activating auto-restart Carbonio Files sidecar proxy
carbonio-files.service loaded activating auto-restart Carbonio Files daemon
carbonio-mailbox-nslookup-sidecar.service loaded activating auto-restart Carbonio Mailbox NSLookup proxy sidecar
carbonio-mailbox-sidecar.service loaded activating auto-restart Mailbox carbonio proxy sidecar
carbonio-message-broker-sidecar.service loaded activating auto-restart Carbonio message broker sidecar proxy
carbonio-message-broker.service loaded active running Carbonio message broker daemon
carbonio-mta-sidecar.service loaded activating auto-restart Carbonio mta sidecar proxy
carbonio-preview-sidecar.service loaded activating auto-restart Carbonio Preview sidecar proxy
carbonio-preview.service loaded active running Carbonio Preview daemon
carbonio-prometheus-consul-exporter.service loaded active running Carbonio Prometheus Consul exporter
carbonio-prometheus-mysqld-exporter.service loaded active running Carbonio Prometheus MySQL exporter
carbonio-prometheus-nginx-exporter.service loaded active running Carbonio Prometheus NGINX exporter
carbonio-prometheus-node-exporter.service loaded active running Carbonio Prometheus Node Exporter
carbonio-prometheus-openldap-exporter.service loaded active running Carbonio Prometheus OpenLDAP exporter
carbonio-prometheus-postgres-exporter.service loaded active running Carbonio Prometheus Postgres exporter
carbonio-prometheus.service loaded active running Carbonio Prometheus service
carbonio-storages-sidecar.service loaded activating auto-restart Storages-CE sidecar proxy
carbonio-storages.service loaded active running Carbonio Storages-CE daemon
carbonio-user-management-sidecar.service loaded activating auto-restart Carbonio User Management sidecar proxy
carbonio.service loaded active exited LSB: Carbonio Services

PS: I don't have Telegram on my phone, how to join Anahuac without it to get the better install script ?

Regards

JP P

What is your host operating system?

What are your hardware specs? Do you have enough RAM, CPU cores?

Carbonio needs 32GB of Ram and a minimum of 4 cores but, better with 8 cores. Take my word.

Are you installing carbonio manually or with the installation script?

You better join Anahuac on Telegram and asked to download his installation script. His script I think is better than the one from Carbonio.

https://t.me/carboniobrasil

As I said before you need to have a installation that is working to start with.

Again:

What are the Services Status? From this link:

https://docs.zextras.com/carbonio-ce/html/troubleshooting/services.html#ts-services

Many services are dependent on others. You disable services, just you don't want them, is a disaster.