This website is 100% secure with https, but it’s a self-signed certificate which many browsers interprtes as danger, but its all nice and secure, also follow thie video uploaded in the site on how to signup and login to a e-mail client. Please keep in mind that you never should use passwords that you use on other websites, always try to use a different password. Also you can anly recieve emails for the foreceble future because of SMTP outgoing connection faults, but I also have the domain razzeman.ddns.net which is more developed on that end, this domain is only for testing with my TE4-class.