Shop stocking stuffers · Explore top gifts. Feb 1,  · To back up mailbox data locally on a Windows PC or Mac, Outlook stores all email messages, attachments, and other data items in a PST format. But sometimes, users need to . 5 days ago · To save an Outlook email as PDF with attachments, follow these steps: Open your email in Outlook and go to the File menu. Select Save As from the drop-down menu. .