fix

destroy.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+COMPOSE_FILE="$SCRIPT_DIR/docker-compose.yml"
+
+if [ "${DELETE_MAIL_DATA:-}" != "YES" ]; then
+  echo "This removes the mailserver container and all mail volumes." >&2
+  echo "Run: DELETE_MAIL_DATA=YES ./destroy.sh" >&2
+  exit 1
+fi
+
+docker compose -f "$COMPOSE_FILE" down --remove-orphans
+docker volume rm \
+  email_server_mail-data \
+  email_server_mail-state \
+  email_server_mail-logs 2>/dev/null || true
+echo "Old mail server and mail data removed."