WholeClear MBOX to TGZ Converter is a user-friendly software for converting MBOX emails to Zimbra TGZ format. It supports bulk conversion of multiple MBOX files from a folder without file-count limitations. The tool preserves email properties such as hyperlinks, fonts, embedded images and formatting. It supports MBOX files from Thunderbird, Mac Mail, Postbox and other clients. It is available for Windows, macOS and Linux and it requires no additional software for conversion process.