New Script: Proxmox Mail Gateway (#1906)

* Proxmox Mail Gateway LXC

* improvements

* renamed to long name and added install check

* Update proxmox-mail-gateway.sh

* Update proxmox-mail-gateway.sh

* Update proxmox-mail-gateway.json

* Update proxmox-mail-gateway-install.sh

* Update proxmox-mail-gateway.sh

* Update proxmox-mail-gateway.sh

* Update proxmox-mail-gateway-install.sh

---------

Co-authored-by: Michel Roegl-Brunner <73236783+michelroegl-brunner@users.noreply.github.com>

ct/proxmox-mail-gateway.sh

@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+source <(curl -s https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/build.func)
+# Copyright (c) 2021-2025 community-scripts ORG
+# Author: thost96 (thost96)
+# License: MIT | https://github.com/community-scripts/ProxmoxVE/raw/main/LICENSE
+# Source: https://www.proxmox.com/en/products/proxmox-mail-gateway
+
+APP="Proxmox-Mail-Gateway"
+var_tags="mail"
+var_cpu="2"
+var_ram="4096"
+var_disk="10"
+var_os="debian"
+var_version="12"
+var_unprivileged="1"
+
+header_info "$APP"
+base_settings
+
+variables
+color
+catch_errors
+
+function update_script() {
+  header_info
+  check_container_storage
+  check_container_resources
+  if [[ ! -e /usr/bin/pmgproxy ]]; then msg_error "No ${APP} Installation Found!"; exit; fi
+  msg_info "Updating ${APP}"
+  apt-get update &>/dev/null
+  apt-get -y upgrade &>/dev/null
+  msg_ok "Updated ${APP}"
+  exit
+}
+
+start
+build_container
+description
+
+msg_ok "Completed Successfully!\n"
+echo -e "${CREATING}${GN}${APP} setup has been successfully initialized!${CL}"
+echo -e "${INFO}${YW} Access it using the following URL:${CL}"
+echo -e "${TAB}${GATEWAY}${BGN}https://${IP}:8006/${CL}"