How do I fix 'Authentication Failed' error for iCloud email?

my icloud email show me

【AUTH_ERROR_INVALID_USR_TOKEN】

【Server code

"AUTHENTICATIONFAILED", server

message "Authentication Failed".】

What's going on? I can't receive or send emails.

[Re-Titled by Moderator]

Posted on Apr 11, 2025 2:11 PM

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