disable image preview in the OS X Mail application

In this week’s trick we will continue tuning OS X to make it as suitable as possible to our needs, last week was about the sounds of the notification center and this week the theme is to remove the option to preview images in the default email manager of OS X, this option may be interesting for some users who are used to send many images by mail or have an old Mac.

Mail is the mail manager pre-installed on OS X, in my opinion not the best alternative as far as mail managers are concerned, but many people settle for it and it is the one they use every day.

disable image preview in the OS X Mail application
disable image preview in the OS X Mail application

In Mail when we attach a photo or image it shows us a preview of the image in large, but sometimes this can be worse than if it didn’t. For example if we’re going to attach a large number of images and want to make sure they’re all attached correctly or just if our Mac is a somewhat old model and has trouble processing all the previews.

To get to turn off the preview by default we’ll have to type this in the Terminal:

defaults write com.apple.mail DisableInlineAttachmentViewing 1

If the above command does not work, you can try this one:

defaults write com.apple.mail DisableInlineAttachmentViewing -bool true

Now the image preview will be disabled and only will see a thumbnail of it.

To go back to the previous mode if you are not satisfied with the change you just need to reverse the process, by typing this command:

defaults write com.apple.mail DisableInlineAttachmentViewing 0

If you used the second command above, now use this one:

defaults write com.apple.mail DisableInlineAttachmentViewing -bool false

Now the default preview will work again.

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