The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
The Apple Support Community will permanently close on November 20, 2026. Starting today, the site will no longer accept new posts and is available in a read-only state.
You can continue to find trusted guidance and support on the official Apple Support site.
We want to thank the community members who have contributed their time and expertise to help others with their Apple products.
Clicking view > show side preview on and off does nothing. I suspect the column width was shrunk too small somehow to 0, how do I revert to the default screen setting for preview side bar size? I need to see the preview of the mail.
Mac mini 2018 or later
Hover the cursor over the right edge of the Mail window until it turns into a left pointing arrow…
Then click & drag to the left until the pane pops open.
FWIW, the pane doesn't reveal itself while you drag. It "pops" open once you get near half way to the left.
I see the cursor like that yes. It will not drag the column out though when I click and drag. The left column will move like that but the preview column on the right seems to be stuck or gone entirely. I appreciate the tip though. I think I might have to delete the mail app and reinstall??
THANK YOU!!! :D
You're welcome.
Catalina Mail Columns, "show side preview" not working.
