How can I configure advanced MIME settings?

  1. From the menu, click File > Locations > Edit Current Location.
  2. Click the Advanced tab, then click the MIME Settings tab.
  3. In the Outbound attachment encoding method field, select the method by which attached files are made safe for transport over SMTP.
  4. In the Outbound Macintosh attachment conversion field, select the format for encoding Macintosh attachments.