Hi guys!
I am a small firm system admin from Slovenia. In the past I was working with ClearOS, mail servers roles, small installations.
At the moment I am testing NS8, mail server role.
What is your guess, how NS8 can perform with 50, maybe 100 users?
What hw performance is needed in that case?
Thanks and best regards from Slovenia.
Hi @hazarder
And welcome to the NethServer community.
No guessing, I’m a professional! 
I am running about 10 NS8, all in a Proxmox VM for clients (All based on Debian 12). I do not see any issues with 50-100 users, my largest client has about 70 mail accouts in use.
The server (As a VM) should have 8/12/16 cores (No Sockets), 16/24/32 GB RAM and enough Diskspace (Disks should be running on SSDs or similiar, spinners, even enterprise class, can have timing issues.
My clients are all major AD / File Sharing users, NextCloud is also used heavily (Calendar/Adressbooks, also files, but these are Samba Mounts) and Mail.
Hope this Info helps.
My 2 cents
Andy
Hello Tomaz,
I’m also an old (long) ClearOS user.
Not sure what mail package you were using, but i used Kopano
This is/was the best packages ever with activeysync.
NS8 provides Sogo which comes close if you to use Activesync for mail/contact/calender.
Running now for 6+ months and is very stable
The amount of users is just a matter of horsepower like Andy says.
I’m running a low power server and is also working very good (20-30% CPU)
Other packages within NS8 are also available for mail, but no experience with this
Thanks Andy, it is a helpfull info.
I’m running at the moment a test environment on Rocky 9.5, 4 cores, 8 GB, desktop SSD.
My concerns are based on slow interface (Cluster status). I have Mail + Sogo + Crowdsec modules installed.
Hi @hazarder
If you can use 8 cores, 16 GB RAM. Your server will have enough oompf to handle 50 users / mail accounts…
Look at things this way: If you buy a new notebook, it’s likely going to have 8 cores or even more. And at least 8 GB of RAM, nowadays 16 GB RAM notebooks (Consumer end) are common.
So the server, handling much more users than a notebook gets only a quarter of the resources a user gets? Not realistic!
My 2 cents
Andy
Hey Patrick, thank you, so you know about ClarkConnect… J
I used Zarafa for a while, but switched then to classic smtp/imap/roundcube.
Also here, I want just a Mail + Sogo, but my concers are based on slow interface.
The server itself is faster than the Web-GUI (Cluster-Admin)…
But this is in itself not soo critical, it’s mainly used for administration.
My 2 cents
Andy
Yep.
Started also with CC.
Don’t worrie about performance with NS8.
My self running on Debian 12 because my other VMs are also on Debian.
Rspamd is also a great tool. Better than spamassasin in configuration possibilities
Besides the support on the forum is great.
Like the old days at Clarkconnect forum 