If you are looking for perfect software that solves your IMAP to IMAP migration issues, like IMAP syncing problems, limitations, etc. Then you can use software called DataVare Mail Migration Tool. This tool quickly syncs both your primary and destination accounts through the IMAP protocol and enables you to shift data in bulk. The tool supports many IMAP supported servers like Yahoo, Gmail, Yandex, iCloud, Outlook, and the rest. Before starting the migration, you can filter the data by date and folder for selective data transmission. It is designed for Windows and is very easy to run, making you avoid almost every type of human error during migration. The app uses SSL and preserves attachments, attributes, and folder structure without manipulating or harming them. This tool will definitely satisfy your migration needs, whether they're personal or for business.