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Spam Meeting Requests showing up on IOS Calendar

Cheryl Bisceglia 40 Reputation points
2026-05-30T18:52:06.9366667+00:00

I use Outlook on my Surface, but prefer to use the IOS mail, calendar and contacts apps on my iPhone. I just started getting spam/porn meeting requests showing up as pending requests on my IOS calendar. They are coming from my Outlook spam folder and not showing up on my Outlook calendar. Any fixes for this in my MS / Outlook settings?

Don't hate me. I have used the Outlook mobile app, but don't love it.

Outlook | MacOS | New Outlook for Mac | For home
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AI answer

2026-05-30T18:52:14.66+00:00

This behavior is caused by how the native iOS Calendar app processes meeting requests that arrive in the mailbox, including those that land in Junk/Spam. The provided context does not include a way in Microsoft 365/Outlook settings to stop the iOS Calendar app from surfacing those spam requests while still using the native iOS apps instead of Outlook for iOS.

The only supported workaround in the context for problematic calendar behavior on iOS is to use Outlook for iOS as the calendar client instead of the native iOS Calendar app. Outlook for iOS handles Exchange/Outlook.com calendar data directly and is the recommended client when there are issues with how a third‑party or Apple client interacts with Exchange/Outlook.

To reduce these spam meeting requests based on the available information:

  1. Use Outlook on the Surface to continue marking such messages as Junk so that Microsoft’s spam filters learn and reduce similar messages.
  2. For the iPhone, switch calendar usage to Outlook for iOS, which is the documented workaround when iOS calendar behavior causes unwanted meeting traffic.

If the issue persists when using Outlook for iOS, contact Apple for additional help with the native iOS Calendar app, as issues with how that app interprets Exchange/Outlook data are outside what can be changed in Outlook or Microsoft 365 settings according to the context.

References:

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Answer accepted by question author

Hornblower409 9,445 Reputation points
2026-05-31T05:33:31.3266667+00:00

SPAM Calendar Events

This is a know issue. Microsoft is aware of the problem but there is currently no fix. Unless you are in an IT Managed Environment there is nothing you can do to stop them.

See the Answer by "Hornblower409 Mar 20 2026" in
https://learn.microsoft.com/en-us/answers/questions/5829157/scam-outlook-calendar-invites

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