A answer for domain
Hello, I did not understand the possibility of using custom domains. I do not have a domain at the moment; if I upgrade to the premium version, can I create one with Tutanota or should I already own it? Thank you very much
You would have to purchase the domain from another provider. We do not offer this service. For further instructions, please check https://tutanota.uservoice.com/knowledgebase/articles/666088-how-can-i-use-my-custom-own-domain-with-tutanota.