Are you searching the same query "can I save mac mail emails to hard drive"? If yes, then the answer is yes.
you can easily save your Mac Apple Mail emails to Hard drive in any required file format like - Outlook PST, PDF, MSG, EML, EMLX, HTML, RTF, XPS, Zimbra TGZ, NSF, etc. without any issue by using the CubexSoft MBOX Converter software. It helps every individual and professional person to save Mac Mail mailbox emails to hard drive with all attachments in a precise way.
If you want to test the working method before getting it, then you can download its free trial version, which is completely free and support to move 20 emails from each Mac Mail mailbox to selected output format in hard drive without cost.
To get more details about it, visit here: https://www.cubexsoft.com/mbox/