How can I access my icloud email inbox

Hi nable to select startup disk,

Thanks for posting in Apple Support Communities.

You can access your iCloud inbox by logging in to iCloud.com and selecting the inbox.

Read email in Mail on iCloud.com

You can view mail sent to your @icloud.com email address and any aliases in Mail on iCloud.com. If you have iCloud+, you can also view mail sent to your custom email domain addresses.

To view your iCloud Mail on other devices, see Set up iCloud Mail on all your devices.

Note: Custom Email Domain isn’t available in all countries or regions.

Find these details in Read email in Mail on iCloud.com - Apple Support.

Regards.