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How to remove an unwanted calendar invitation on my iPhone?

I received both an email and an invitation into my inbox of my calendar “Alert Trojan Detected” the calendar selected doesn’t have a delete option like all my other calendars. There is no option through accounts. How do I delete this?


[Re-Titled by Moderator]

iPhone 6s, iOS 12

Posted on Oct 1, 2023 1:22 PM

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Posted on Nov 6, 2023 3:48 PM

Same problem for me - all of a sudden my iPhone calendar was showing all day entries from 1st Nov to 27th Dec for this; unable to decline invitation or delete etc.

After going thru settings > Calendar > accounts, noticed that my outlook account (for which I use for email) was also set (via the green button) to sync outlook calendar. I deselected this option (but left email still active) & okayed warning from iPhone that it would delete the outlook calendar entries and lo & behold the suspicious entries have now disappeared from iPhone calendar! Never use outlook calendar anyway - only always the iPhone calendar so no loss not to synch with outlook. And it certainly seems to have sorted issue. Looks like problem is with outlook….

36 replies

How to remove an unwanted calendar invitation on my iPhone?

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