permissions

prepare-email-storage.sh

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+#!/bin/bash
+# filepath: prepare-email-storage.sh
+
+# Prepare mounted drive at /mnt/MainEmail for email storage
+# Run this script before running the main setup script
+
+set -euo pipefail
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+BLUE='\033[0;34m'
+NC='\033[0m' # No Color
+
+MAIL_ROOT="/mnt/MainEmail"
+
+error() {
+    echo -e "${RED}ERROR: $1${NC}" >&2
+    exit 1
+}
+
+info() {
+    echo -e "${BLUE}INFO: $1${NC}"
+}
+
+success() {
+    echo -e "${GREEN}SUCCESS: $1${NC}"
+}
+
+warning() {
+    echo -e "${YELLOW}WARNING: $1${NC}"
+}
+
+# Check if running as root
+if [[ $EUID -ne 0 ]]; then
+    error "This script must be run as root"
+fi
+
+# Check if the mount point exists and is mounted
+info "Checking mount point $MAIL_ROOT..."
+
+if [[ ! -d "$MAIL_ROOT" ]]; then
+    error "Directory $MAIL_ROOT does not exist. Please ensure your drive is mounted there."
+fi
+
+# Check if it's actually a mount point
+if ! mountpoint -q "$MAIL_ROOT"; then
+    warning "$MAIL_ROOT exists but is not a mount point. This might be just a regular directory."
+    echo "If this is intentional, press ENTER to continue. Otherwise, press Ctrl+C to abort."
+    read -r
+fi
+
+# Display current mount information
+info "Current mount information for $MAIL_ROOT:"
+df -h "$MAIL_ROOT"
+echo
+
+# Check available space
+AVAILABLE_SPACE=$(df --output=avail "$MAIL_ROOT" | tail -n1)
+AVAILABLE_GB=$((AVAILABLE_SPACE / 1024 / 1024))
+
+info "Available space: ${AVAILABLE_GB}GB"
+
+if [[ $AVAILABLE_GB -lt 10 ]]; then
+    warning "Only ${AVAILABLE_GB}GB available. Consider having at least 10GB for email storage."
+fi
+
+# Create vmail user and group if they don't exist
+info "Creating vmail user and group..."
+groupadd -g 5000 vmail 2>/dev/null || {
+    if getent group vmail >/dev/null; then
+        info "Group vmail already exists"
+    else
+        error "Failed to create vmail group"
+    fi
+}
+
+useradd -g vmail -u 5000 vmail -d "$MAIL_ROOT" -s /bin/false 2>/dev/null || {
+    if getent passwd vmail >/dev/null; then
+        info "User vmail already exists"
+        # Update home directory if needed
+        usermod -d "$MAIL_ROOT" vmail
+    else
+        error "Failed to create vmail user"
+    fi
+}
+
+# Set ownership and permissions on the mail root
+info "Setting ownership and permissions on $MAIL_ROOT..."
+chown vmail:vmail "$MAIL_ROOT"
+chmod 755 "$MAIL_ROOT"
+
+# Create basic directory structure
+info "Creating basic directory structure..."
+mkdir -p "$MAIL_ROOT"/{domains,backup,logs}
+chown -R vmail:vmail "$MAIL_ROOT"
+chmod -R 755 "$MAIL_ROOT"
+
+# Test write permissions
+info "Testing write permissions..."
+if sudo -u vmail touch "$MAIL_ROOT/test_write" 2>/dev/null; then
+    rm -f "$MAIL_ROOT/test_write"
+    success "Write permissions test passed"
+else
+    error "vmail user cannot write to $MAIL_ROOT"
+fi
+
+# Display final status
+success "Email storage preparation completed!"
+echo
+echo -e "${BLUE}=== Storage Summary ===${NC}"
+echo "Mount point: $MAIL_ROOT"
+echo "Owner: vmail:vmail (UID:5000, GID:5000)"
+echo "Permissions: 755"
+echo "Available space: ${AVAILABLE_GB}GB"
+echo
+echo -e "${BLUE}=== Directory Structure Created ===${NC}"
+echo "$MAIL_ROOT/"
+echo "├── domains/    (for domain-specific mailboxes)"
+echo "├── backup/     (for backup storage)"
+echo "└── logs/       (for mail-related logs)"
+echo
+echo -e "${GREEN}Ready for email server setup!${NC}"
+echo "You can now run the main setup script: ./setup-email-server.sh"