[SOLVED] Use Specific Node In Cluser For SMTP / Email Notifications

nebbit32

New Member
May 23, 2025
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Hi,

I have a simple setup. I have 2x PVE nodes in a cluster & 1x PBS box.
I have spent a great deal of my time today figuring out how to get Proxmox to relay through Office365 using Postfix.
Long story short, I've figured that part out. I have setup 'Node 1' in the cluster as the postfix relay.

My question is, how do I get 'Node 2' & the PBS box to use Postfix on 'Node 1'??
Otherwise I will have to setup Postfix relaying on all nodes & PBS which is long.