BackStory: I've never been a fan of putting too many eggs in one basket. I had accounts for Gmail, Google Docs, Google+, YouTube, you name it. If it was Google owned, I probably used it. In an attempt to "spread the wealth", I ventured out and started experimenting with some alternatives (Zoho, DuckDuckGo, just to name a few).
Recently I heard a news report about Twitter making a deal with Russian search engine Yandex. I'd never heard of it before, so I gave their search and email service a try. To make a long story short, I really liked what I saw, and I'd like to integrate Yandex into my work flow.
Question: Are Americans allowed to use Yandex email? I signed up for an account without any problem, and didn't see any rules against it, so I assume it's okay. But I just wanted to make sure.