To easily transfer emails from Outlook to Apple Mail, the best tool to use is the "ToolsBaer OLM to MBOX Converter." This software efficiently converts Outlook OLM files into Apple Mail MBOX format, ensuring a smooth and seamless transition of your important emails. With just a few simple steps, you can migrate all of your Outlook emails, contacts, calendars, and attachments to Apple Mail in no time. The tool preserves the folder hierarchy and email formatting during the conversion process, so you won't lose any data or information in the transfer. Additionally, it allows you to preview the converted files before saving them to ensure accuracy and completeness.