Can't send email with attachments in Sierra
In mail I get this message "This message contains attachments that are still being loaded." This happened since I upgraded to Sierra. How to do I fix this?
Mac OS X (10.1.x)
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I had the same problem. I turned off the option 'optimise Mac storage' and restarted my Mac, now it works again as before. System preferences -> iCloud -> iCloud Drive options -> optimise Mac storage. Hope this helps.
