To export EML emails to Zimbra TGZ format you can either try manual methods or go with an automated solution. Manually, you would need to first import EML files into an email client and then sync them with Zimbra, but this is a bit complicated and not suitable if you have a large number of emails. The best way is to use an expert tool like Softaken EML to TGZ Converter. This utility lets you export bulk EML files to Zimbra email client while preserving email formatting and folder structure. It preserves all email attributes like to/cc/bcc/subject and other details during the process. You don't need any past technical skills to complete this process.