6. Yandex
Yandex is a Dutch multinational technology company that specializes in Internet-related services such as email, search engine, maps, navigation and so on. It is also the biggest search engine in Russia, holding over 65% of the market share. However, we are interested in their email service the Yandex Mail. On the account creation page, you will be prompted to provide a phone number, however, you can easily avoid it by option for a security question instead, as we already mentioned. Of course, their email services are free, but for added features and data storage, you can go select a premium package.