Block deserialization error when using eDiscovery

Support

Hello,

Select a different account.

You have multiple accounts

Choose the account you want to sign in with.

Exchange Server 2019 More...Less

Symptoms

When you use the eDiscovery search feature, the following exception is returned and you can't access eDiscovery:

Deserialization of type Microsoft.Exchange.Data.PropertyBag+ValuePair blocked due to NotInAllow at location MailboxDataStore.

To fix this issue, install Cumulative Update 13 or a later cumulative update for Exchange Server 2019.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.