22.214.171.124.1.1. Sent messages are not synchronized with the server
The problem is caused by a mismatch between the folder names in the Russian version of Outlook and the standard folder names on the server. This causes Outlook to save sent emails not to a folder "Sent", as other mail clients do, but creates a separate folder "Sent" (a similar situation can be observed with folders "Drafts", "Spam" and "Deleted"). A discussion of this problem can be found on the official Microsoft website for URL.
To remedy the situation, you can do the following:
- Switch Outlook interface to English.
- Reconfigure mailbox connection
- Return the Russian interface language.
- Check the synchronization of the sent mail.