Mail becomes incredibly slow, but only if I download attachments

Mail becomes incredibly slow, but only if I download attachments (photos, files pdf, etc]

This has happened a lot lately.

If I get a message with, say, some photos attached Works Mail very well. However, if I can download files attached to my iMac mail becomes so incredibly slow, even if I delete the email with the files. If I quit Mail and then restart the problem persists... I literally spinning beachball if I want to compose a message... everything still works, but each action takes forever. I tried to rebuild the mailbox, but it does not work. The only way to recover messages to work properly (at normal speed) is to restart the computer.

All ideas

[I have 24Go of ram on end of 2012 3.4 ghz iMac with a fusion 3 TB drive]

Start Safe Mode removes the system caches that can help...

Follow these steps to start in safe mode.

  1. Start or restart your Mac.
  2. As soon as you hear the startup tone, hold down the SHIFT key.
  3. Release the SHIFT key when you see the logo Apple appears on the screen.

After the Apple logo appears, this may take longer than usual to reach the login screen or your office. This is because your Mac performs a check of directory of your drive to boot in safe mode.

To leave safe mode, restart your computer without pressing any keys during startup.

Then try to download an attachment.

Tags: Mac OS & System Software

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