Launching Monday, November 2, 2026
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About

GainTools TGZ to MHTML Converter is a reliable software for exporting Zimbra TGZ files into MHTML format allowing users to access the converted emails through compatible web browsers. It supports the conversion of large-size Zimbra files without limitations on the size or number of TGZ files. It preserves the original folder and subfolder sequence during conversion confirms that email data remains organized. Users can convert TGZ files to MHTML without requiring Zimbra to be installed and can save the resulting MHTML files to any preferred location on their computer. The converted data includes attachments and important email details such as To, CC, BCC, and other message information.

Important Features

· The software provides a built-in preview option to check all Zimbra emails before conversion. Users can select specific items and export them to MHTML format to open Zimbra files using Internet Explorer.

· It exports Zimbra emails and their attachments to MHTML format. Attachments from every Zimbra email are supported. Large Zimbra files can also be exported to MHTML easily.

· During TGZ to MHT conversion the tool keeps all elements of the Zimbra file safe. Email formatting and folder hierarchy remain unchanged. Details such as Subject, From, To, CC, BCC, Sent, Time, Date, hyperlinks, inline images and font styles are preserved.

· The conversion is accurate and does not cause data loss or corruption. Zimbra emails can be migrated to MHT format regardless of the size or number of Zimbra files.

· Zimbra or any other additional tool is not required for the conversion. TGZ files extracted from different Zimbra editions can be exported using the application including Zimbra 7.2.8, 7.3.0, 7.2.0 and others.

· The application works on different Windows versions, including Windows 11, 10, 8, 7, XP and others. The conversion can be performed without affecting other tasks running in the system.