Hello @Daniel Dunér ,
Please refer to this document to know about service specific limits for Exchange services.
It's recommended to follow our Best practices to avoid throttling documentation when it comes to Graph API throttling.
Please refer to the below documents for more information:
https://learn.microsoft.com/en-us/graph/throttling-limits
https://learn.microsoft.com/en-us/graph/throttling
Hope this helps.
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