If you are looking for a reliable approach to backup Amazon emails to the external hard drive then, use the MacSonik AWS backup tool for Mac. This is a reliable and secure utility that helps to backup Amazon emails to PDF, PST, EML, and other various file formats. It helps to save emails with or without attachments and free up the server space after creating the backup. The Amazon Workmail backup tool for Mac removes duplicate emails from backup process without losing data integrity. It also enables the migration AWS emails to different email clients like Gmail, Thunderbird, Office 365, etc.