To log out of your account, you need to remove (un-link) your inbox from the app. You can completely remove your inbox in one of the following ways:
Currently the app does not have its own address book. Instead, you can type the first letters of the recipient's name or email address in the To field, and the app will suggest possible options.
Check whether you are connected to the internet (the Yandex.Mail app needs to be connected to the internet to work correctly):
You can change the password in the Yandex.Mail web interface (see How do I change my password or my security quesiton answer?).
You can recover your password on the access recovery page.
If this does not help, please contact us using the feedback form.
If you've forgotten your username, try to use the tip on the access recovery page. The tip can help if you've recently accessed your Yandex account from the same mobile phone.
Alternatively, you can ask your recent correspondents to tell you what email address you used.
If neither of these helps, please contact us using the feedback form.
If you've accidentally deleted messages or they are just missing, try looking for them in the Deleted folder (the messages in this folder are kept for 7 days after deletion). To recover your messages:
If the missing messages are not available in the Deleted folder, they unfortunately cannot be recovered.
If you're sure that you haven't deleted them, try the following:
If none of these recommendations helps or if you have any questions about missing messages, please contact us using the feedback form.
If you are sure that the mailbox settings and email address are correct, try requesting a message from the website again. If the message does not arrive within a few hours, please contact site administration.
Custom folders can only be created in the Yandex.Mail web interface (see Folders).
You can customize the mail aggregator for other mailboxes and create the message handling rules only in the Yandex.Mail web interface (see Aggregation of messages from other mailboxes and Message handling rules).
If you have an issue which is not described above, please contact us using the feedback form.
Don't forget to provide a detailed account of what you were doing when the problem arose.
Also attach screenshots of the error messages and the entire app.