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Hi,

when adding a user to a distribution group in the “member of” tab of the “edit mailbox settings” I get the following error.

System.Web.Services.Protocols.SoapException: Server was unable to process request. —> System.Exception: Error executing ‘ADD_DISTR_LIST_MEMBER’ task on ‘xxxxxxxx’ EXCHANGE —> System.NullReferenceException: Object reference not set to an instance of an object. at SolidCP.EnterpriseServer.ExchangeServerController.AddDistributionListMember(Int32 itemId, String distributionListName, Int32 memberId) — End of inner exception stack trace — at SolidCP.EnterpriseServer.ExchangeServerController.AddDistributionListMember(Int32 itemId, String distributionListName, Int32 memberId) at SolidCP.EnterpriseServer.esExchangeServer.AddDistributionListMember(Int32 itemId, String distributionListName, Int32 memberId) — End of inner exception stack trace —

but adding the user as member in the edit distribution list page works without problems.

What might be the issue?

Answered question