The OSTtoPSTAPP IMAP Backup Tool is a reliable choice for safely backup IMAP emails. It supports a wide range of file formats and transfers data quickly and precisely while retaining folder hierarchy. It is compatible with all Windows operating system versions, including 11, 10, 8.1, 8, and 7, and does not require the download of any software. The software has a simple interface that non-technical users can utilize.