apple mail sidebar
the sidebar in apple mail won't expand, even when I hold the cursor on the divider and move it right
iMac 27″, macOS 10.14
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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 sidebar in apple mail won't expand, even when I hold the cursor on the divider and move it right
iMac 27″, macOS 10.14
Re: "apple mail sidebar :
the sidebar in apple mail won't expand, even when I hold the cursor on the divider and move it right"
Wondering what you are seeing when you try ... eg: the cursor on the divider should be "changing" for you ...
Seems we need to carefully move the cursor on the dividing line until the cursor changes to a "small vertical bar with an arrow pointing out each side" (much like a small bold cross), Then, (with the cross cursor showing) carefully "press and drag" to expand or reduce the width of the sidebar. Once we catch the "knack" it is not difficult to do.
I was able to get the cursor to change and move the divider in a different app. After it worked there, it worked like a charm when I went back to Mail. A very unexpected success.
Oh good! Thank you kindly for taking the time to reply, and let us know.
Cheers :-)
apple mail sidebar