[PS] D:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-PublicFolder -Recurse | Format-List Name,Replicas

Name     : IPM_SUBTREE
Replicas : {}

[PS] D:\Program Files\Microsoft\Exchange Server\V14\Scripts>Get-PublicFolder \NON_IPM_SUBTREE | Format-List Name,Replica
s

Name     : NON_IPM_SUBTREE
Replicas : {}

Hello,

I've already mentioned it in another thread, but maybe it's an update-issue in stead of server issue.

My problem: It seems (well, it doesn't work anymore, so it's an issue) that the option "Require that all senders are authenticated" on 'Distribution Group' not longer works. I really don't know why this happends and when it doesn't work anymore, because it did work when creating the group (and the updates weren't available).

The situation (so maybe there's another option to find out what causes the problem):

Pineapp -> Exchange 2007 SP2 Rollup 4. The pineapp is being used before I installed updates of Exchange (and it did work with this setup), so in my opinion, this can't be the problem.

If someone could help me, or point me to a (new) direction so I can solve the problem with our Exchange server, that would be great :).

I am using windows 2007, SP2, 64 bit operating system and exchange server 2007 on top it.

I have migrated my users to a third party solution.

Unfortunately, during this migration, there are 2 uses who seems to have lost few e-mails (nearly 2 weeks e-mails ..not sure how that happened but the backup PST does not have it hence it was not uploaded to the third party provider ...)

How do i get the pst from .edb file so I can put it again to synch with the new platform ??

My exchange server 2003 server migrate to server 2010. After migration pop3 users cannot connect mail server, Then I'm restart POP3 service, after restating service , clients are working properly .But after five days, face in same issue. After restart service again ,clients are working properly,

Pls give me permanent solution for that issue

We have many servers running SBS 2011 standard. On one particular server (which just passed the three year mark this past weekend) we are seeing MSExchangeTransport Event ID 12015 and 12016, telling us that an internal transport certificate has expired.

Based upon research, using the Get-ExchangeCertificate command, I have found that there are five different thumbprints indicating certificates. We currently have a commercial 5 year cert for the web user interface and AD synchronization.

Looking at the results of Get-ExchangeCertificate | fl, I can see that the first certificate (server.domain.local) goes from 4/10/2014 to 4/10/2015, the second (remote.domainname.com) goes from 8/16/2011 to 8/16/2016 (this is the commercial cert), the third goes from 8/15/2011 to 8/12/2021, the fourth (this is the thumbprint referenced in the 12015 error) goes from 8/15/2011 to 8/14/2013 and the fifth goes from 8/15/2011 to 8/14/2013.

Reviewing the event log shows that the fifth certificate (also expired) is never referenced.

Several accepted answers on technet and other sites show that running Fix My Network will correct the problem, but running FMN on this server just shows me that my DHCP server is not running (which it is) and it wants me to create a static IPv6 address (which it did not accomplish.)

What is the best way to fix a problem where important self-signed certificates expire after only two years?

Randy

MCP SBSC

BEN AHMED Yesser

Hello, we are having issues implementing the Offline Address Book.  I had everything working fine prior to preparing to remove my Exchange 2003 server. 

This started happening after i changed from one address book to another.  I have a UC certificate with all the correct FQDN, NetBios, and DNS names.  This issue is affecting both internal and external users (OLAW). 

From the client side if you do a Test E-mail autoconfiguration there is no "OAB URL" under the "OOF URL", where there used to be one.

I am able to access https://outlook.mydomain.com/autodiscover/autodiscover.xml& https://outlook.mydomain.com/oab/<GUID>/oab.xml from the inside as well as the outside and I get the XML text.

Here are some results from the EMC

Get-ClientAccessServer | fl
-----------------------------------------------------------------------------------------------------------------------
Name                           : <CASServer>
OutlookAnywhereEnabled         : True
AutoDiscoverServiceCN          : <CASServer>
AutoDiscoverServiceClassName   : ms-Exchange-AutoDiscover-Service
AutoDiscoverServiceInternalUri : https://outlook.mydomain.com/Autodiscover/Autodiscover.xml
AutoDiscoverServiceGuid        : 77378f46-2c66-4aa9-a6a6-3e7a48b19596
AutoDiscoverSiteScope          : {<Default First Site Name>}
IsValid                        : True
OriginatingServer              : ds-app1.corp.mydomain.com
ExchangeVersion                : 0.1 (8.0.535.0)
DistinguishedName              : CN=CASServer,CN=Servers,CN=Exchange Administrative Group
                                 OHF23SPDLT),CN=Administrative Groups,CN=<OrganizationName>,C
                                 osoft Exchange,CN=Services,CN=Configuration,DC=corp,DC=mydomain,DC=com
Identity                       : CASServer
Guid                           : d29ec49e-7f8c-414c-81c1-80e7ad322638
ObjectCategory                 : corp.mydomain.com/Configuration/Schema/ms-Exch-Exchange-Se
ObjectClass                    : {top, server, msExchExchangeServer}
WhenChanged                    : 10/4/2007 5:24:51 PM
WhenCreated                    : 8/28/2007 4:04:22 PM

Get-WebServicesDirectory | fl
-----------------------------------------------------------------------------------------------------------------------
InternalNLBBypassUrl          :
Name                          : EWS (Default Web Site)
InternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
ExternalAuthenticationMethods : {Basic, Ntlm, WindowsIntegrated}
BasicAuthentication           : True
DigestAuthentication          : False
WindowsAuthentication         : True
MetabasePath                  : IIS://CASServer.corp.mydomain.com/W3SVC/1/ROOT/EWS
Path                          : C:\Program Files\Microsoft\Exchange Server\ClientAccess\exchw
Server                        : <CASServer>
InternalUrl                   : https://outlook.mydomain.com/EWS/Exchange.asmx
ExternalUrl                   : https://outlook.mydomain.com/EWS/Exchange.asmx
AdminDisplayName              :
ExchangeVersion               : 0.1 (8.0.535.0)
Identity                      : <CASServer>\EWS (Default Web Site)
Guid                          : 41c65fc5-3ec2-4b21-b9d6-eadb69ff4376
ObjectCategory                : corp.mydomain.com/Configuration/Schema/ms-Exch-Web-Services
                                al-Directory
ObjectClass                   : {top, msExchVirtualDirectory, msExchWebServicesVirtualDirecto
WhenChanged                   : 9/11/2007 2:50:01 PM
WhenCreated                   : 8/28/2007 4:07:24 PM
OriginatingServer             : ds-app1.corp.mydomain.com
IsValid                       : True

Get-OabVirtualdirectory | fl
---------------------------------------------------------------------------------------------------------------
Name                          : OAB (Default Web Site)
PollInterval                  : 5
OfflineAddressBooks           : {Offline Address Book}
RequireSSL                    : True
MetabasePath                  : IIS://CASServer.corp.mydomain.com/W3SVC/1/ROOT/OAB
Path                          : C:\Program Files\Microsoft\Exchange Server\ClientAccess\OAB
Server                        : <CASServer>
InternalUrl                   : https://CASServer.corp.mydomain.com/oab
InternalAuthenticationMethods : {WindowsIntegrated}
ExternalUrl                   : https://outlook.mydomain.com/OAB
ExternalAuthenticationMethods : {WindowsIntegrated}
AdminDisplayName              :
ExchangeVersion               : 0.1 (8.0.535.0)
DistinguishedName             : CN=OAB (Default Web Site),CN=HTTP,CN=Protocols,CN=CasSERVER
                                ervers,CN=Exchange Administrative Group (FYDIBOHF23SPDLT),CN=A
                                strative Groups,CN=Dynasplint Systems,CN=Microsoft Exchange,CN
                                ices,CN=Configuration,DC=corp,DC=mydomain,DC=com
Identity                      : CASServer\OAB (Default Web Site)
Guid                          : 1477428c-6b87-4991-bf4e-ce29e94e6ea5
ObjectCategory                : corp.mydomain.com/Configuration/Schema/ms-Exch-OAB-Virtual-D
                                ory
ObjectClass                   : {top, msExchVirtualDirectory, msExchOABVirtualDirectory}
WhenChanged                   : 11/16/2007 10:17:46 AM
WhenCreated                   : 11/15/2007 3:04:41 PM
OriginatingServer             : ds-app1.corp.mydomain.com
IsValid                       : True

Test-OutlookWebServices -identity administrator | ft * -AutoSize -Wrap
--------------------------------------------------------------------------------------------------------------
  Id        Type Message
  --        ---- -------
1003 Information About to test AutoDiscover with the e-mail address Administrator@mydomain.com.
1013       Error When contacting https://mydomain.com/Autodiscover/Autodiscover.xml received the error The remote server returned an error: (401) Unauthorized.
1006       Error Failed to contact AutoDiscover

Anyone have suggestions?

• MSExchange ADAccess, 2501, The site monitor API was unable to verify the site name for this Exchange computer - Call=HrSearch Error code=80040a01.
• MSExchange ADAccess, 2114, Topology discovery failed, error 0x80040a02
• MSExchangeIS, 1121, Error 0x96f connecting to the Microsoft Active Directory.
• MSExchange ADAccess, 2604, Process MSEXCHANGEADTOPOLOGY (PID=1464). When updating security for a remote procedure call (RPC) access for the Exchange Active Directory Topology service, Exchange could not retrieve the security descriptor for Exchange server object XXXMAIL2 - Error code=80040a01

• The Microsoft Exchange Information Store service terminated with service-specific error 0 (0x0).
• Timeout (30000 milliseconds) waiting for the Microsoft Exchange Service Host service to connect.
• The Microsoft Exchange Service Host service failed to start due to the following error:
• The service did not respond to the start or control request in a timely fashion.

Need some recommendations for export to PST of Notes mail data and local archives > PST.

I'm aware of the Quest offerings and have used QNME in previous migrations, however this particular migration warrants the export of all Source data to PST only  - without any coexistence etc.

IF anyone can reccomend offerings outside of Quest i'd like to hear experiences.

TIA.

Hi,

We have recently migrated from Gmail to Hosted Exchange. For historical data we setup mailboxes to download Gmail using IMAP then we exported these into PSTs.

We imported the PSTs into the users new Exchange accounts (Aware no calendar/contacts at this stage)- what we have found now is the Gmail reference folders, which is expected, but when you right click on it it still has 'IMAP Folder'. When we go back into the account we cant see any IMAP links, and considering this was imported with PST surely these would've been lost (that's what I expected).

The issue now is you cant freely drag and drop as the IMAP is causing permission issues.

Any help would be greatly appreciated.

Hi,

How i can retrieve the information about , particular  Server service accounthas got any level of permissions on exchange environment ? ( on server or any exchange objects )

Do you have any command / script to retrieve these information ?

Br,

Anandan

trying to help my tech with a problem migrating DC from standard server 2003  to standard server 2008R2.  Any thoughts or suggestions are appreciated!

Firewalls off on both machines.

When attempting to reach the DC in server2003 "server is offline" error message appears.

Ran dcdiag in server2003:

            'dcdiag' is not recognized as an internal or external command... etc.

Ran dcdiag on Server2008:

Directory Server Diagnosis:

Performing initial setup

trying to find home server...

Home Server = server2008

* Identified AD Forest

Done Gathering initial info.

Doing intial required tests:

   Testing server:  Default-First-Site-Name\server2008

            Starting test : Connectivity

                       The host 9a4c92xxxxxxxx._msdcs.domain.local could not be resolved to an IP address

                       .............server2 failed test Connectivity

Doing Primary Tests:

            Testing Server: Default-First-Site-Name\Server2

                       Skipping all tests because Server2008 is not responding to directory service requests

ForestDnsZones: passed tests

DomainDnsZones passed

Schema: tests passed

Configuration:  passed

Domain:  passed

Running enterprise tests on  : domain.local

           Starting test: LocatorCheck

              Warning:  DcGetDcName(PDC_REQUIRED) call failed, error 1355

               A Primary Domain Controller cound not be located.

             Warning:  DcGetDcName(TIME_SERVER) call failed, error 1355

               A time server could not be located

              The server holding the PDC role is down

      .......................... domain.local failed test LocatorCheck

      .......................... domain.local failed test Intersite

I'm trying to backstop my tech who is stumped so be gentile -

Environment:

Existing Standard Server 2003 x32 -> New Standard Server 2008 R2 x64

Problem:

Can't seem to complete the migration - getting error message that 2003 is offline (it's not). 

ran dcdiag on 2003:  "dcdiag is not recognized as an internal or external command, blah blah...."

ran dcdiag on 2008: 

Running partition tests on  : Configuration

Hello

I have an SBS server 2011 with Exchange installed. Also i have added an additional domain controller.

On the additional domain controller, i installed PST Capture and office 2010 x64. i am signed in as a domain admin.

When i try to import a pst file to Exchange Online with pst capture i get Import Error: Opening PST file

On the PST capture i can see all the maiboxes created in office 365. Please how do i resolve this?

The PST file is located on a client PC and i have exported the client mail to a pst with password set and save with passed list checked

We're using Windows 2008 R2 with Exchange 2010, the server is currently a global catalog server and running exchange. We've upgraded from SBS 2003 and the old server is still running but was to be removed from the domain any day now. Everything had been working properly for about a year but today after the server was reset everything just stopped working. The application event log shows multiple errors that just continue in an endless loop every few minutes, I've googled each one individually and so far none of the suggested fixes have helped. I've reset the server multiple times without luck.

The only change that was done to exchange recently was we listed static domain controllers and global catalog servers using (Set-ExchangeServer -Identity <server_name> -StaticDomainControllers DC-01.dc.local)and (Set-ExchangeServer -Identity <server_name> -StaticGlobalCatalogs DC-01.dc.local,DC-02.dc.local)because exchange was still using the old SBS2003 server. It had been reset at least once since doing this and everything continued to work. I assume this is what's causing the issue but I have no way to undo it since I can't get exchange to start and I'm not sure why it would work properly for a few days if this is the case.

Prior to the upgrade, these were the versions we were using:

FL2000-EXCAS001 [ClientAccess] [Enterprise] 8.0.535.0

FL2000-EXCAS002 [ClientAccess] [Enterprise] 8.0.535.0

FL2000-EXHUB001 [HubTransport] [Enterprise] 8.0.535.0
- 20120913:  Update Rollup 4 for Exchange Server 2010 Service Pack 2 (KB2706690) 14.2.318.2

FL2000-EXHUB002 [HubTransport] [Enterprise] 8.0.535.0
- 20120913:  Update Rollup 4 for Exchange Server 2010 Service Pack 2 (KB2706690) 14.2.318.2

FL2000-EXMBX001 [Mailbox] [Enterprise] 8.0.535.0
- 20120913:  Update Rollup 4 for Exchange Server 2010 Service Pack 2 (KB2706690) 14.2.318.2

The reason the CAS servers were using an earlier build version was because during the upgrade we had to open a MS case and they couldn't figure out why a service kept restarting. They only gave the reason that it had to be 3rd party software which we weren't able to isolate. So they told us it was okay to kep the CAS at the earlier versions. Servers seemed to be stable the past couple of years.

Tonight we upgraded from the above versions to SP3, and then SP3 UR5. It seems the same issue is occurring. ActiveSync & WebApp clients seem to work normally, but Outlook has problems connecting. The CAS application logs have regular instances of the following errors:

---

Log Name:      Application
Source:        MSExchange Common
Date:          4/12/2014 1:07:18 AM
Event ID:      4999
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      FL2000-EXCAS001.domain.com
Description:
Watson report about to be sent for process id: 2612, with parameters: E12, c-RTL-AMD64, 14.03.0181.006, M.E.AddressBook.Service, M.Exchange.Rpc, M.E.R.R.RfriRpcOperationBase.Complete, System.ArgumentException, adcd, 14.03.0181.006.
ErrorReportingEnabled: True
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Common" />
    <EventID Qualifiers="16388">4999</EventID>
    <Level>2</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-12T05:07:18.000000000Z" />
    <EventRecordID>2457221</EventRecordID>
    <Channel>Application</Channel>
    <Computer>FL2000-EXCAS001.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>2612</Data>
    <Data>E12</Data>
    <Data>c-RTL-AMD64</Data>
    <Data>14.03.0181.006</Data>
    <Data>M.E.AddressBook.Service</Data>
    <Data>M.Exchange.Rpc</Data>
    <Data>M.E.R.R.RfriRpcOperationBase.Complete</Data>
    <Data>System.ArgumentException</Data>
    <Data>adcd</Data>
    <Data>14.03.0181.006</Data>
    <Data>True</Data>
    <Data>
    </Data>
  </EventData>
</Event>

---

Log Name:      Application
Source:        MSExchange Common
Date:          4/12/2014 1:07:17 AM
Event ID:      4999
Task Category: General
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      FL2000-EXCAS001.domain.com
Description:
Watson report about to be sent for process id: 2612, with parameters: E12, c-RTL-AMD64, 14.03.0181.006, M.E.AddressBook.Service, M.E.Data.Storage, M.E.D.S.A.ActiveManagerImplementation.CalculatePreferredHomeServerInternal, System.NullReferenceException, 35f1, 14.03.0181.006.
ErrorReportingEnabled: True
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Common" />
    <EventID Qualifiers="16388">4999</EventID>
    <Level>2</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-12T05:07:17.000000000Z" />
    <EventRecordID>2457215</EventRecordID>
    <Channel>Application</Channel>
    <Computer>FL2000-EXCAS001.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>2612</Data>
    <Data>E12</Data>
    <Data>c-RTL-AMD64</Data>
    <Data>14.03.0181.006</Data>
    <Data>M.E.AddressBook.Service</Data>
    <Data>M.E.Data.Storage</Data>
    <Data>M.E.D.S.A.ActiveManagerImplementation.CalculatePreferredHomeServerInternal</Data>
    <Data>System.NullReferenceException</Data>
    <Data>35f1</Data>
    <Data>14.03.0181.006</Data>
    <Data>True</Data>
    <Data>
    </Data>
  </EventData>
</Event>

---

We are also seeing instances of the following error number, but it pre-existed tonights upgrade albeit with different text in the message:

---

Log Name:      Application
Source:        MSExchange Autodiscover
Date:          4/12/2014 12:54:18 AM
Event ID:      1
Task Category: Web
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      FL2000-EXCAS001.domain.com
Description: Unhandled Exception "Object reference not set to an instance of an object."
Stack trace:    at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManagerImplementation.CalculatePreferredHomeServerInternal(ActiveManager activeManager, Database database, ADSystemConfigurationSession adSession, IFindAdObject`1 dagLookup, IFindAdObject`1 findClientAccessArray, IFindMiniClientAccessServerOrArray findMiniClientAccessServer, LegacyDN& preferredRpcClientAccessServerLegacyDN, ADObjectId& preferredServerSite)
   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.CalculatePreferredHomeServer(Guid databaseGuid, LegacyDN& preferredRpcClientAccessServerLegacyDN, ADObjectId& preferredSiteId)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.TryGetPreferredSite(ExchangePrincipal exchangePrincipal, Site& preferredSite, LegacyDN& rpcClientAccessServerLegacyDN)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.GetUserSettings(HashSet`1 requestedSettings, IBudget budget)
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.GetCurrentUserConfigurationSettings()
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.Get302RedirectUrl()
   at Microsoft.Exchange.Autodiscover.WCF.LegacyBodyWriter.<>c__DisplayClass1.<GenerateResponse>b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Autodiscover" />
    <EventID Qualifiers="49152">1</EventID>
    <Level>2</Level>
    <Task>2</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-12T04:54:18.000000000Z" />
    <EventRecordID>2457153</EventRecordID>
    <Channel>Application</Channel>
    <Computer>FL2000-EXCAS001.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Object reference not set to an instance of an object.</Data>
    <Data>   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManagerImplementation.CalculatePreferredHomeServerInternal(ActiveManager activeManager, Database database, ADSystemConfigurationSession adSession, IFindAdObject`1 dagLookup, IFindAdObject`1 findClientAccessArray, IFindMiniClientAccessServerOrArray findMiniClientAccessServer, LegacyDN&amp; preferredRpcClientAccessServerLegacyDN, ADObjectId&amp; preferredServerSite)
   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.CalculatePreferredHomeServer(Guid databaseGuid, LegacyDN&amp; preferredRpcClientAccessServerLegacyDN, ADObjectId&amp; preferredSiteId)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.TryGetPreferredSite(ExchangePrincipal exchangePrincipal, Site&amp; preferredSite, LegacyDN&amp; rpcClientAccessServerLegacyDN)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.GetUserSettings(HashSet`1 requestedSettings, IBudget budget)
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.GetCurrentUserConfigurationSettings()
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.Get302RedirectUrl()
   at Microsoft.Exchange.Autodiscover.WCF.LegacyBodyWriter.&lt;&gt;c__DisplayClass1.&lt;GenerateResponse&gt;b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)</Data>
  </EventData>
</Event>

---

Log Name:      Application
Source:        MSExchange Autodiscover
Date:          4/12/2014 12:57:25 AM
Event ID:      1
Task Category: Web
Level:         Error
Keywords:      Classic
User:          N/A
Computer:      FL2000-EXCAS001.domain.com
Description:
Unhandled Exception "Object reference not set to an instance of an object."
Stack trace:    at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManagerImplementation.CalculatePreferredHomeServerInternal(ActiveManager activeManager, Database database, ADSystemConfigurationSession adSession, IFindAdObject`1 dagLookup, IFindAdObject`1 findClientAccessArray, IFindMiniClientAccessServerOrArray findMiniClientAccessServer, LegacyDN& preferredRpcClientAccessServerLegacyDN, ADObjectId& preferredServerSite)
   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.CalculatePreferredHomeServer(Guid databaseGuid, LegacyDN& preferredRpcClientAccessServerLegacyDN, ADObjectId& preferredSiteId)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.TryGetPreferredSite(ExchangePrincipal exchangePrincipal, Site& preferredSite, LegacyDN& rpcClientAccessServerLegacyDN)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.GetUserSettings(HashSet`1 requestedSettings, IBudget budget)
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.GetCurrentUserConfigurationSettings()
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.Get302RedirectUrl()
   at Microsoft.Exchange.Autodiscover.WCF.LegacyBodyWriter.<>c__DisplayClass1.<GenerateResponse>b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="MSExchange Autodiscover" />
    <EventID Qualifiers="49152">1</EventID>
    <Level>2</Level>
    <Task>2</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2014-04-12T04:57:25.000000000Z" />
    <EventRecordID>2457178</EventRecordID>
    <Channel>Application</Channel>
    <Computer>FL2000-EXCAS001.domain.com</Computer>
    <Security />
  </System>
  <EventData>
    <Data>Object reference not set to an instance of an object.</Data>
    <Data>   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManagerImplementation.CalculatePreferredHomeServerInternal(ActiveManager activeManager, Database database, ADSystemConfigurationSession adSession, IFindAdObject`1 dagLookup, IFindAdObject`1 findClientAccessArray, IFindMiniClientAccessServerOrArray findMiniClientAccessServer, LegacyDN&amp; preferredRpcClientAccessServerLegacyDN, ADObjectId&amp; preferredServerSite)
   at Microsoft.Exchange.Data.Storage.ActiveManager.ActiveManager.CalculatePreferredHomeServer(Guid databaseGuid, LegacyDN&amp; preferredRpcClientAccessServerLegacyDN, ADObjectId&amp; preferredSiteId)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.TryGetPreferredSite(ExchangePrincipal exchangePrincipal, Site&amp; preferredSite, LegacyDN&amp; rpcClientAccessServerLegacyDN)
   at Microsoft.Exchange.Autodiscover.ConfigurationSettings.UserSettingsProvider.GetUserSettings(HashSet`1 requestedSettings, IBudget budget)
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.GetCurrentUserConfigurationSettings()
   at Microsoft.Exchange.Autodiscover.Providers.Outlook.OutlookAutoDiscoverProvider.Get302RedirectUrl()
   at Microsoft.Exchange.Autodiscover.WCF.LegacyBodyWriter.&lt;&gt;c__DisplayClass1.&lt;GenerateResponse&gt;b__0()
   at Microsoft.Exchange.Common.IL.ILUtil.DoTryFilterCatch(TryDelegate tryDelegate, FilterDelegate filterDelegate, CatchDelegate catchDelegate)</Data>
  </EventData>
</Event>

---

The biggest issue is Outlook not connecting apparently due to the Address Book service regularly restarting. Any ideas on how to diagnose and resolve this?