Nmap need to be installed. (apt install nmap on Ubuntu/Debian systems) Sender_email, receiver_email and password needs to be added in def mail.

To use start with python3 nmap_email.py -new ip address to scan to make a template. To compare template with a new scan run python3 nmap_email.py -ip ip address to scan

In def nmap you can change the syntax used with nmap.