An unexpected error occurred and your request couldn't be handled.

Posted on 2011-04-28
Last Modified: 2012-05-11
I have two mailboxes on an exchange 2010 server.
One is fully working, Outlook, Outlook Anywhere, ActiveSync, OWA
The other is working with everything except for OWA.
It was working, I don't know what/when it stopped. Don't think I changed anything.

After logging into OWA I see this:

An unexpected error occurred and your request couldn't be handled.

User host address:
User: Bxx xxx
EX Address: /o=BM/ou=Exchange Administrative Group (FYDIBOHF23SPDLT)/cn=Recipients/cn=Bxxxxx
SMTP Address:
OWA version: 14.0.639.21
Mailbox server:

Exception type: System.NullReferenceException
Exception message: Object reference not set to an instance of an object.

Call stack
Microsoft.Exchange.Clients.Owa.Premium.ConversationUtilities.GetItemCountExcludingFolders(IList`1 itemIds, IList`1 excludedFolderIds)
Microsoft.Exchange.Clients.Owa.Premium.Controls.ConversationItemList2.RenderRow(TextWriter writer, Boolean showFlag, ListViewRowType rowTypeToRender, Boolean renderContainer)
Microsoft.Exchange.Clients.Owa.Premium.Controls.ConversationItemList2.ValidatedRender(TextWriter writer, Int32 startRange, Int32 endRange)
Microsoft.Exchange.Clients.Owa.Premium.Controls.GroupByList2.RenderGroup(TextWriter writer, Int32 startRange, Int32 endRange, IGroupRange group, Boolean skipHeader)
Microsoft.Exchange.Clients.Owa.Premium.Controls.GroupByList2.RenderGroups(TextWriter writer, Int32 startRange, Int32 endRange)
Microsoft.Exchange.Clients.Owa.Premium.Controls.GroupByList2.ValidatedRender(TextWriter writer, Int32 startRange, Int32 endRange)
Microsoft.Exchange.Clients.Owa.Premium.Controls.VirtualListView2.InternalRenderChunk(TextWriter writer, Boolean error, String errorFlag, Nullable`1 errorString)
Microsoft.Exchange.Clients.Owa.Premium.Controls.VirtualListView2.RenderChunk(TextWriter writer)
Microsoft.Exchange.Clients.Owa.Premium.Controls.VirtualListView2.Render(TextWriter writer)
ASP.forms_premium_messageview_ascx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
ASP.forms_premium_startpage_aspx.__Render__control1(HtmlTextWriter __w, Control parameterContainer)
System.Web.UI.Control.RenderChildrenInternal(HtmlTextWriter writer, ICollection children)
System.Web.UI.Page.Render(HtmlTextWriter writer)
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)

Does anyone have any idea of a fix? I was hoping to do this without creating a new mailbox.

Question by:B0000
    LVL 10

    Expert Comment

    Have you configured redirection?
    Try by moving user's mailbox to another database, also check that owa is enabled for the user or not from the properties of the user's mailbox.

    Author Comment

    Today I built a new server with a new database and tried moving the mailbox. The problem remained. I have also tried disabling then re-enabling OWA for the user. I don't have any redirection configured.
    LVL 10

    Expert Comment

    Try by updating windows and exchange and also repair owa virtual directory.

    Expert Comment


    Accepted Solution

    I was unable to make any progress with this and moved to a new server to resolve.

    Author Closing Comment

    Gave up

    Featured Post

    Shouldn't all users have the same email signature?

    You wouldn't let your users design their own business cards, would you? So, why do you let them design their own email signatures? Think of the damage they could be doing to your brand reputation! Choose the easy way to manage set up and add email signatures for all users.

    Join & Write a Comment

    Resolve Outlook connectivity issues after moving mailbox to new Exchange 2016 server
    "Migrate" an SMTP relay receive connector to a new server using info from an old server.
    In this video we show how to create a User Mailbox in Exchange 2013. We show this process by using the Exchange Admin Center. Log into Exchange Admin Center.: First we need to log into the Exchange Admin Center. Navigate to the Recipients >> Mailb…
    how to add IIS SMTP to handle application/Scanner relays into office 365.

    745 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    18 Experts available now in Live!

    Get 1:1 Help Now