Windows 11 Mail App Not Syncing Fix [Solution]

Windows 11 Mail App Not Syncing Fix [Solution]
The default Windows 11 Mail client is not automatically syncing, according to some users. Oddly enough, the problem doesn’t seem to be limited to any particular email service provider; it has been reported to happen with Gmail, Yahoo, AOL, and even with business emails.
Issues addressed in this tutorial:
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Sometimes you might experience syncing issues with the Mail and Calendar app on your Windows 11/10 device when it’s not able to fetch any content from Outlook.com. Maybe you’ve just set up your account on the Mail and Calendar app, and you see the error message “Not synced yet“ or “We didn’t find anything to show here“. In this post, we will take a look at how to resolve the syncing problems and download older emails from your account.
This tutorial will apply for computers, laptops, desktops, and tablets running the Windows 10 and Windows 11 operating systems (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba, Lenovo, Alienware, Razer, MSI, Huawei , Microsoft Surface, and Samsung.

[@Nick41622]

The new mail app should not be used. Microsoft can now see your login credentials.

[@ShibaCat]

The new outlook also, I add 10 of my gmail account to outlook app, and found it not sync the mail , or some inbox delay half day to get new mail. Finally I change to use thunderbird.