With the DataVare MBOX to TGZ Converter program, users can convert more than one MBOX file to Zimbra Webmail. It lets you export several MBOX files to TGZ format at the same time. During the converting procedure, the program will keep all of the rich-text formatting. MBOX to TGZ Zimbra Converter can move mailbox files from Thunderbird, Entourage, Spicebird, Mac Mail, The Bat!, and other programs that use MBOX files to store their info. Users can import MBOX to Zimbra with correct formatting and files. files will stay in their original format, though. The program promises that the conversion will be 100% safe and will keep all files safe while it convert MBOX emails to TGZ format. There is a trial version of software that enables you convert 25 MBOX files per folder so you can get an idea of how the software works.