Support for multiple retention policies would be very useful since we use multiple retention policies within Office 365. For example, our executives have a 2 year retention policy and everyone else has a 1 year retention policy. Being restricted to one retention policy within Veeam Backup for Microsoft Office 365 forces us to chose between violating our retention policy for non-executive users or providing incomplete backup of the executives mailboxes. We are both a Veeam partner and sell Office 365 services. It isn't uncommon for us to configure our customers with multiple retention policies. Support for these within Veeam Backup for Microsoft Office 365 would be helpful in selling this to customers.