How to switch off Mail app preview for attachments

How many times have you tried to open a mail message but the mail just freezes because it’s building the previews for the message attachments?

By default the Mail app provides a preview of any attachments it can read, however, you can turn it off by running a simple Terminal command:

defaults write DisableInlineAttachmentViewing -bool yes

Then, quit Mail and relaunch it.

Now when you view a message, all attachments will be shown as icons only.

To restore it back to defaults, just run the this command:

defaults write DisableInlineAttachmentViewing -bool no

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