I decided to test The Bat (I've used Thunderbird so far). Email is configured based on IMAP. I have no problem with received mail (it has been read). The problem is with sent mail (mail that was sent via Thunderbird was read into the "Inbox" -> "Sent" folder. Mail that is sent using The Bat is saved to the root folder "Sent". To sum up - sent mail is saved to two different folders depending on the mail client How to configure that sent mail is stored in one folder (just like incoming mail)?

Best regards
Darek