Carbonio CE, behavior after fresh installation - Install & Setup

RE: Carbonio CE, behavior after fresh installation

Sharif — Tue, 24 Feb 2026 04:49:04 +0000

@jamesraynor1994

I would say this is normal. You can only troubleshoot if you notice inconsistency.

root@mail:~# free -mh
               total        used        free      shared  buff/cache   available
Mem:            11Gi        10Gi       1.1Gi       1.1Gi       1.7Gi       1.5Gi
Swap:             0B          0B          0B
root@mail:~#

Regards

RE: Carbonio CE, behavior after fresh installation

jamesraynor1994 — Mon, 23 Feb 2026 15:06:58 +0000

I did not start any migration, just testing mailboxes and Carbonio workflow, but somehow, it is still increasing memory consumption. I added 2 inboxes, and memory goes like 11 GB consumption, I restart the server, memory starts at 8GB, and slowly, starts RAM consumption, is it norma?

RE: Carbonio CE, behavior after fresh installation

Sharif — Wed, 11 Feb 2026 09:48:10 +0000

@jamesraynor1994

It is hard to say at this point. I would suggest you to get the accounts and distribution lists without their data from Zimbra to Carbonio CE. Test some regular interaction and transaction of emails to see if the services and responses are optimal.

Carbonio CE, behavior after fresh installation

jamesraynor1994 — Mon, 09 Feb 2026 18:39:50 +0000

I set up my Ubuntu 24.04 server with Carbonio CE 25.12.0, all on a fresh, clean installation. This is on a test server; I want to test before migrating my Zimbra mail server.

The specifications are:

4 CPUs
512 GB Hard Drive
16 GB RAM

This is running under VMware 6.7 virtualization.

However, the following behavior concerns me for a potential production move:

RAM usage is progressive. After a server reboot, I notice it consumes about 7.5 GB, and gradually, more RAM gets used. I left it last Friday, and today when I checked, it had reached ~11 GB. I rebooted it, and it went back to 7.5 GB, but it slowly consumes more and more RAM over time.
Periodically, I get an error preventing web access due to an issue. This is a recurring problem; I cannot log in via either a normal user account or the admin panel. On the server itself, all services are running normally.

For the installation, I used the existing guide in the documentation. I only have two mailboxes I created myself (zextras and a test one), plus the system mailboxes which remain.

Is this normal?