Migrate New Mac to Old Mac - Version 3.1 Migrate new Mac to Old Mac email data without any hazards at SysTools platform cause we are providing our software of the decade which is known as OLM to MBOX Conversion Software. It converts Outlook 2011 OLM files into MBOX format. Here's how to transform OLM to MBOX or thunderbird. To begin you have to purchase SysTools OLM to MBOX converter tool it is fast and highly accurate Mac mail conversion program covering three main areas of expertise: email migration, email extraction, and email archiving. It is suitable for both small and big scale projects, from home use to large corporate migrations, and mission-critical forensic work. There are a few solutions that may make conversion easier. For Windows, you can try downgrade Outlook 2011 to Entourage tool, shareware available from Connected Software. You can use Outlook 2011 to Apple address book to convert Mac OS 10.6 mails to MBOX and contact information for more than 3 to 5 email clients and systems. Just keep in mind that Install the software on a Windows machine and connect your Mac disk as secondary disk for conversion the