It happens when you convert Eudora 7 and lower versions into PST format. Because MBX files only contain emails and attachments are stored in a separate folder. Simply follow the given steps for collective email and attachments conversion: Step 1: Run Eudora to Outlook converter and click "Add File" Step 2: Choose Eudora and select "Default file configured" option Step 3: "Preview" the Eudora emails Step 4: Click "Export" to convert Eudora to PST for Outlook