@[deleted]
As far as I know, you're using Yandex Mail and I hate to break it to you but you're using a service with significantly worse privacy and security with zero benefits.
Even though US and Russia aren't exactly friends but Russia would still cooperate with the US. Even if they didn't the US doesn't need cooperation when your email service is that trash.
If NSA was secretly spying on politicians in Germany don't you think the US can spy on your poor security and poor privacy email service?
Just look at this: https://www.foxnews.com/politics/obama-knew-of-nsa-spying-on-merkel-and-approved-it-report-says