http://tutacomm6oqwlbbpd246mljjxpupuxxqj2jg5mfdyegeaetdauigslad.onion/blog/tutanota-launches-secure-connect-encrypted-contact-form
As websites usually track IP addresses of visitors, an anonymous usage of Secure Connect can be achieved by accessing
the website in question via the Tor browser. When a news site adds Secure Connect, the site should clearly state that
whistleblowers must access the encrypted contact form via Tor to protect their identity.