Is it possible to turn off automatic preview of attachments when composing an e-mail?
NOTE: Yes I know that I can manually ctr+select the attachment and disable preview, but I want this done automatically
There is an extension for Apple Mail called Attachment Tamer. It has all kinds of settings, but the most useful is the one that defaults attachments to the icon view.
It is $15 but well worth it.
To expand on @user43521's answer, there are two ways to solve this problem:
If you drag-and-drop files—even images—into Mail.app's compose window, they'll be sent as real attachments (
If you open a terminal and enter this command, it will always make attachments real attachments:
defaults write com.apple.mail DisableInlineAttachmentViewing -bool yes
You only need to do this once. To revert to normal behavior:
defaults write com.apple.mail DisableInlineAttachmentViewing -bool no
Viewing portion of this is very confusing; this affects how your outgoing mail is sent. If you receive mail with inline attachments, they'll be displayed as expected. In fact, it's even more confusing than that, because regardless of this setting, both inline and attached images that you receive will be displayed inline.