Deduplication and Compression feature for Exchange mailbox backup questions

[albertwt]

When using the Veeam Backup for Microsoft 365 to backup Exchange Online mailbox and the Online Archive to the non-Object Storage, is there any Deduplication benefits or just the Compression only?

Because according to this article: https://helpcenter.veeam.com/docs/vbo36 ... tml?ver=70 the Object Storage has the benefits

[Mildur]

Hi Albert

Local repositories have ~10% compression while with object storage you may get a compression rate up to 10-30% for Sharepoint and up to 40-50% for Exchange.
More information here in the best practice guide: https://bp.veeam.com/vb365/guide/design ... -data-size

Please note, VB365 doesn't provide deduplication. Example:
When you sent a email with a 10MB attachment to 10000 recipients in your organization, that mail will be protected 10000 times (+1 time in your sent item folder). And when all these 10000 enduser delete that mail, it will get moved to the deleted item folder and will be protected again 10000 times.

We strongly recommend to use object storage based repositories whenever possible. Especially for larger M365 environments and service provider it's beneficial to use object storage repositories.

Best,
Fabian