Non-Delivery email when the reoccurring meeting is updated and sent to participants

Occasional Contributor
Can anyone help me to get the relevant information about following error and suggest the fix?
Error: STOREDRV.Deliver.Exception:StoragePermanentException.MapiExceptionInvalidParameter; Failed to process message due to a permanent exception with message Cannot modify recipients. 1.65506:00000000, 1.49122:22000000, 1.57314:00000000, 1.30670:00000000, 4.25550:57000780, 0.20017:02000000, 4.28209:57000780 [Stage: OnCreatedEvent][Agent: Meeting Message Processing Agent]'
Background of the issue: We have Exchange Hybrid but all users are hosted Exchange Online. One of the user recently tried to update a particular meeting event (from a reoccurring meeting) and countered following NDR from multiple users. In the original meeting the organizer had invited DLs as well. From the error I think the issue could be due to the new members were updated/added/removed in the groups but I can't find any relevant information online for this specific error... If you can find the valid reference which proves my suspicion it would be great.
0 Replies