Cloudmail.ru in Air Explorer
Air Explorer is always adding new cloud file servers as a Cloudmail.ru to be the most complete software to manage cloud servers.
Cloudmail.ru is a Russian cloud server that gives you 25 GB of free for your files. You can add it to Air Explorer easily.
First sign up in Cloudmail.ru and create your own account.
Part of the sign up process is to create an email account.
Then you can work with it. Cloudmail.ru support in Air Explorer includes viewing thumbnails, file searching, transfers to and from other servers, etc.