HOW DO I SIGN INTO ICLOUD EMAIL ON MY MAC COMPUTER

Hi Corell1,

Welcome to the Apple Community.

Wondering how your iCloud email is set up.

Apple Support's article:

Add an email account to Mail on your Mac

Says:

The Inbox gathers together the messages for every email account you added.

Complete article: https://support.apple.com/en-us/HT204093

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Set up iCloud for Mail on your Mac

Says:

"To view your iCloud Mail, open the Mail app.

Click a mailbox or folder in the iCloud section."

Complete article: https://support.apple.com/en-au/guide/icloud/mmdd8d1d47/1.0/icloud/1.0

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"Set up a custom email domain for iCloud Mail on all your devices"

Says:

"After you add a custom email domain to iCloud, you can send and receive email on your iPhone, iPad, iPod touch, Mac and Windows computer when you turn on iCloud Mail in iCloud settings.

You can also access your mail on iCloud.com.:

Complete article: https://support.apple.com/en-au/guide/icloud/mm0e4339d289/icloud

All the best :-)