NULL
Hello Giedre, I’m not quite sure what kind of setup you’re currently using with Outlook, are you using an IMAP account setup with both email clients? IMAP should automatically synchronise all your folders between the server and the client so you should have to only setup your account in eM Client.
If you’re using local items you should be able to import any data from outlook using the built in import feature , navigate to File > Import and select the option to import data (selected PST) file from Outlook, and navigate to your local PST that includes your folder content.
Hope this helps,