Show messages in the preview area and new messages you’re writing with a dark background (when this option is selected) or a light background (when this option isn’t selected). Show recipients’ names but not their email addresses (if a recipient is in the Contacts app or the Previous Recipients list, or on a network server). Remote content isn’t displayed in messages that Mail marks as junk. You can deselect the option for increased security, but some messages may not display correctly. When remote content is retrieved from a server, information about your Mac can be revealed. In column layout, show unread messages in bold to help distinguish them from messages you have read. To add fields, click the pop-up menu, choose Custom, click the Add button, then enter the name of a message header, such as Return-Path. Show default or custom fields in message headers.
This setting also determines whether you can delete or archive messages from Mail notifications.
The number of lines of the message to show in the message list.Ĭhoose whether to move the messages to the Trash mailbox so you can delete them or move messages to the Archive mailbox when you swipe left on a message in the message list.