Just a heads up for a hotfix to VB365.
We recently faced multiple errors within our MSP stack for VB365:
Processing mailbox xyz failed with error: There is an error in XML document (1, 5332).. The specified type was not recognized: name='SharingMessage'
Turned out to be a problem introduced by some changes Microsoft applied to M365.
Veeam published a hotfix just a few days later: https://www.veeam.com/kb4527
It’s applicable to the most recent version of 7 (7.0.0.4388) as well as 7a (7.1.0.1301) and I can confirm it to solve the issue.
You have to stop all services and replace Veeam.Ews.dll in 4 different locations.
Make sure to rename or copy the files to be replaced beforehand and have or create a backup of the VB365 system.
