For bulk import .msg files into PDF go with Mac MSG to PDF Converter. It is an automated app that directly detect MSG files and folder from local drive, hence it does not require Outlook email client. It is easy to use app, no such technical knowledge needs to attain in order to execute bulk import .msg files into PDF. It saves all your attachments while conversion processing, it gives options for saving attachments accordingly. You can explore all its features through free demo, which is valid up to 25 files. Users are allowed bulk import .msg files into PDF on all Mac Operating Systems –Monterey, Catalina, Big-Sur, Mojave, High-Sierra, etc.