Viable answer:
OnionMail.org
they don't give you any issues signing up from Tor browser.
Discussion
Still probably requires JavaScript to sign up which means it won't work at safest security setting in Tor browser
Viable answer:
OnionMail.org
they don't give you any issues signing up from Tor browser.
Still probably requires JavaScript to sign up which means it won't work at safest security setting in Tor browser