Does anyone here run their mailcow on Proxmox?

Ganzjahresgriller

I know it’s not recommended, but given the rising costs, I’m thinking about it. I would be interested to know if anyone here is already doing this

ETNyx

Where is it written that Proxmox is not recommended? As far as I know, MC stated:
Do not try to install mailcow on a Synology/QNAP device (any NAS), OpenVZ, LXC or other container platforms. KVM, ESX, Hyper-V and other full virtualization platforms are supported.
and
OpenVZ, Virtuozzo and LXC

Proxmox has 2 types of “VPS” called CT, which is LXC → not supported, and VM which is KVM → supported.
What is usually misconfigured on Proxmox is the CPU configuration for the VM. By default it uses some kind of older vCPU type, meaning it does not propagate modern CPU capabilities (like AVX instructions and more).

That said, I do not use Proxmox for MC, but many modern applications I self-host on Proxmox suffer unless the vCPU is properly configured.

Ganzjahresgriller

Sorry, I must have expressed myself incorrectly; I meant LXC. on Proxmox

ETNyx

Ok, then don’t use MC there, no question. Out of curiosity, what is your reason for not using a VM instead of a CT?

Ganzjahresgriller

I have a VPS at Netcup that still has free resources.

ETNyx

So the reason is that Netcup does allow only some kind of nested LXC for your Proxmox? (Not familiar whit Netcup,..)

Ganzjahresgriller

ETNyx Yes you are right.