Thanks for your answer. I’d like to follow up because this distinction matters greatly to me when considering whether to use an enterprise/support subscription or only the free open-source PMG.
In the official documentation it clearly describes...
The Proxmox features highlists list the
Status of final delivery
of the "innovative Proxmox Message Tracking Center".
What is really meant by status "delivered"
Does the confirmation come from the recipient’s mail server?
Does this mean...