Answers may help you establish how far the email provider will go to protect your privacy and identity, the relevant laws that will govern that company and your messages on their servers. [https://www.privacytools.io/#email Here's a list from the Privacy Tools website] on ethical email providers. Please carefully read their each provider's terms of service and privacy policies before registration. Be aware that apart from protecting the contents of your email messages with encryption, you should also consider email metadata - that is information about who you send and receive email from, when, how often and the subject line, which is never encrypted. Please refer to the EFF [https://ssd.eff.org/en/module/why-metadata-matters Surveillance Self Defense Guide - why Metadata matters].