[Unit]
Description=Email Tracking Server
After=network.target

[Service]
User=tracker
Group=tracker
WorkingDirectory=/opt/tracker
ExecStart=/opt/tracker/venv/bin/python /opt/tracker/simple_email_tracker.py
Restart=always
RestartSec=10

# Security settings
PrivateTmp=true
ProtectSystem=full
NoNewPrivileges=true

[Install]
WantedBy=multi-user.target