Cannot verify server identity

this window comes out every time at any moment

iPhone 15, iOS 17

Posted on Dec 10, 2023 11:31 AM

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Question marked as Top-ranking reply

Posted on Dec 10, 2023 1:43 PM

You probably got tricked into installing a rogue calendar. In the future beware of "free" offers


See this Apple support link→Delete spam calendars and events on iPhone - Apple Support

or watch this companion video:

Delete Calendar Spam

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Cannot verify server identity

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