Veeam is happy to provide a free NFR license (for 1 year, up to 10 users). This license allows for the non‑production use of Veeam Backup for Microsoft Office 365 in your home lab without any feature limitations.
Event Type: Error Event Source: MSExchangeOMA Event Category: (1000) Event ID: 1503 Date: 14/05/2009 Time: 11:20:23 User: N/A Computer: SERVER Description: An unknown error occurred while processing the current request: Message: Item has already been added. Key in dictionary: "AspCookielessSession" Key being added: "AspCookielessSession" Source: mscorlib Stack trace: at System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) at System.Collections.Hashtable.Add(Object key, Object value) at System.Web.SessionState.SessionStateModule.OnBeginRequest(Object source, EventArgs eventArgs) at System.Web.SyncEventExecutionStep.System.Web.HttpApplication+IExecutionStep.Execute() at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
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