static wan

Aloha, I have setup Proxmox 8.1.3 with an Ubuntu 22.04 mail server VM (zimbra) that has a static WAN Ip at site 1 I want to setup a replicated Mail server at Site 2 with a different static wan ip, So that if Mail server 1 goes down, Mail server 2 picks up and starts. Problem - The Static Ip is...