The reason for these problems is NOT Thunderbird or other apps. I recently spent hours reading through these posts and their suggestions all of which did not work for me. There are many, perhaps hundreds, of posts complaining about folks being unable to login to or me.com using mostly third party apps like Microsoft Outlook, Mozilla Thunderbird, or other mail, contacts, and calendar services not provided by Apple. (Advanced Data Protection for iCloud can remain turned on.) See the Apple Support article Manage web access to your iCloud data.Here is a detailed response for resolving all these issues with Apple email accounts with non Apple apps or email clients. If you want to access your data on the web, you can turn just this setting back on. You turned on Advanced Data Protection for iCloud: When you turn on Advanced Data Protection for iCloud, you automatically turn off access to your data on the web, so you can only see Find My iPhone and iCloud Settings at. See Sign in to iCloud on all your devices. For example, if you want to see the photos you have stored in iCloud Photos on your iPhone, make sure to sign in to with the same Apple ID you used to sign in to your iPhone.

You signed in using a different Apple ID: If you have multiple Apple IDs, make sure to sign in to with the account that has the data you’re looking for. You signed in using a web-only account: If you haven’t signed in with your Apple ID on an Apple device, you have web-only access to. You signed in on a mobile device: If you sign in to iCloud on a tablet or a phone, you have access to a different set of apps and features than if you sign in using a computer. If you don’t see what you’re looking for, see if any of the following are true:

Reply to a shared reminder list invitationĭepending on the device and account you use to sign in to, you have access to different apps and features.

Mark a reminder as completed or not completed.

If you can’t create, import, edit, or delete contacts.

Receive email about shared calendar updates.

What you can do with iCloud and third-party apps.

What you can do with iCloud and Reminders.

Set up iCloud Keychain and iCloud Passwords.

What you can do with iCloud Keychain and iCloud Passwords.

What you can do with iCloud and Numbers.

What you can do with iCloud and Messages.

What you can do with iCloud and Keynote.

Back up your iPhone, iPad, or iPod touch.

What you can do with iCloud and Contacts.

What you can do with iCloud and Calendar.

Check your iCloud storage on any device.What you can do with iCloud+ and Custom Email Domain.What you can do with iCloud+ and HomeKit Secure Video.What you can do with iCloud+ and Hide My Email.What you can do with iCloud+ and iCloud Private Relay.How iCloud keeps information up to date.

Overview of apps and features that use iCloud.

Add icloud email to gmail