You can use PGP to encrypt the email. Here is public key.
Hi! This is Techyan. I am a senior high school student living in Anshan, Liaoning, the People's Republic of China. I mainly do anti-vandalism works on Chinese Wikipedia and deal with copyright issues on Wikimedia Commons. You can contact me in Chinese or English. Japanese is okay but I can't understand much. I am an admin on Chinese Wikipedia and an OTRS member that have access to info-zh and permissions. Feel free to send emails or leave messages to me!