Outlook calendar meeting invitations

Question

Outlook calendar meeting invitations

Vanessa Lindbeck 0

When sending out meeting invitations through the Outlook calendar, they are not being received by recipients, and I cannot figure out why?

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Answer 1

Chloe-V 13,460 Microsoft External Staff Moderator

Hi @Vanessa Lindbeck

I’m sorry you’re experiencing this. To help identify where the invitations are being interrupted, please send a new test invitation from Outlook on the web and ask the recipient to check their Inbox and Junk folder. Microsoft’s guidance confirms that invitations should be sent by adding recipients as required or optional attendees and selecting Send.

Please also let us know:

Are you using Outlook.com/Hotmail or a Microsoft 365 work or school account?
Does this affect every recipient or only certain addresses or external domains?
Can the same recipients receive normal emails from you?
Do you receive any non-delivery message after sending?

These details will help determine whether the behavior is related to the Outlook application, the sending mailbox, or recipient-side filtering.

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

Vanessa Lindbeck 0 Reputation points

2026-09-29T17:02:36.08+00:00

I am using Microsoft 365 and it all has been working just fine until about 10 days ago. Standard emails to recipients are working and they have checked their spam/junk folders and are not seeing Meeting invites at all. When I am scheduling Outlook meeting invites, I am adding in attendee email addresses in, just like I normally do, and then I hit "Send" it then gives a message "Event created" but doesnt indicate the invite has been "sent" - it appears, as I have seen through other MS logs, that the email addresses are being wiped out when the invite is created. This is very frustrating. I have removed the email account, added it back in, I have also restarted MS Office, made sure Im using the new version, etc. and its still not working correctly with meeting invites going out.

Whats interesting is that when I send out an invite from my phone/calendar that is linked to the email account, the meeting invite is received, its only happening when I am trying to send from desk top. Please advise.

Thanks!
Chloe-V 13,460 Reputation points Microsoft External Staff Moderator

2026-09-30T23:53:52.2633333+00:00

Hi @Vanessa Lindbeck

Thank you for the additional details. Could you please send a new test meeting invitation directly from Outlook on the web and let us know whether the attendees remain listed after you select Send, and whether the invitation is received?

This will help determine whether the issue is specific to the desktop Outlook app or also occurs in Outlook on the web. Microsoft’s guidance confirms that a meeting invitation is sent after attendees are added and Send is selected.
Chloe-V 13,460 Reputation points Microsoft External Staff Moderator

2026-10-01T23:25:30.3966667+00:00

Hi @Vanessa Lindbeck

Is there any update from you?

If yes, please feel free to let us know.
Vanessa Lindbeck 0 Reputation points

2026-10-05T19:02:48.5066667+00:00

Thank you! All seems to now be operating correctly... thank goodness!
Vanessa Lindbeck 0 Reputation points

2026-10-05T19:03:24.5133333+00:00

All seems to now be working correctly; thank you!