Error in deserializing body of reply message for operation 'ExportItems'

[Polina]

Hi Johannes,

I removed the configuration keys you shared because editing XML files is something that should only be performed by support request and parameters may vary depending on the individual case and environment.

Thanks!

[mikey328]

Hello,

Is there an official fix for this issue? I've recently upgraded to version 8 and have been having various issues with my backups since the upgrade. I'm receiving this specific error in this thread on one particular online archive (happens to be the largest shared mailbox in our org):

12/17/2024 5:52:40 AM :: Processing archive mailbox redacted@redacted.com failed with error: Mail item data export failed. Error in deserializing body of reply message for operation 'ExportItems'.. There is an error in XML document (1, 186972701).. No characters can appear before the XML declaration. Line 1, position 186972701. :: 0:13:27

[Polina]

Hi @mikey328 and welcome to Veeam forums,

RnD is investigating the issue, hotfix is not yet available. Could you please provide me with your support case ID?

Thanks!

[ChickenLittle]

Just chiming in to say we're also experiencing this issue with one particular mailbox