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MIGRATION OF MAILBOX FROM EXCHANGE SERVER 2010 TO 2013

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Good morning

Kindly give me the detailed steps on how to migrate mailbox from exchange 2010 to exchange 2013

Regards

Fredrick Ndegwa


Can't expand public folders externally Outlook 2007 Client

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I can expand Exchange 2007 Public Folders internally from a mailbox on 2013, but outside when doing the same procedure I get an error that I can't expand the Public Folders.

I'm trying to figure out right now if externally the usage of Public Folders is handled by the virtual directory /Public from the legacy servers.  To check I was trying to go to the legacy virtual directory and can't access it from the legacy url.  I only seem to be able to access the URL on the HUB itself.  http://localhost/public.

I wanted to look at my config for the Public folder virtual directory but for some reason can't think of the powershell command on how to configure it.  Ugh...


David Jenkins

Installation of CU 11 Exchange 2013 shows wrong CU Version

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Good Day,

I am trying to update to Cu11, but its showing me CU 9.

PS C:\Users\admin> cd .\Desktop
PS C:\Users\admin\Desktop> setup.exe /mode:upgrade /IAcceptExchangeServerLicenseTerms

Welcome to Microsoft Exchange Server 2013 Cumulative Update 9 Unattended Setup
Languages
Client Access role: Front End Transport service
Management tools
Client Access role: Client Access Front End service

Performing Microsoft Exchange Server Prerequisite Check

    Configuring Prerequisites                                                                         COMPLETED
    Prerequisite Analysis                                                                             85%

I even tried to redownload the CU.

Thank you

OBJ_CLASS_VIOLATION during installation of Exchange Server 2013

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Hi,

I have been trying to install Exchange Server 2013 on a virtual Windows 2012 R2 Server that is part of AD but not DC. Another W2012 R2 virtual machine is running as the only DC in the network.

Setup stops during AD prepare (GUI & CLI) and gives me a class violation error. My system is in German but it pretty much goes like this (translation to English by me):

=====================================================

Entry DN: cn=X400,cn=409,cn=Address-Templates,cn=Addressing,cn=MyOrg,cn=Microsoft Exchange,cn=Services,cn=Configuration,dc=MyOrg,dc=com
Error for entry on line 47: violation of object class

Server side error: 0x207d

Occurred while trying to add an attribute to an object, which isn't valid according to its class.

Advanced Server Error:

0000207D: UpdErr: DSID-0315166B, problem 6002 (OBJ_CLASS_VIOLATION), data 590479

Error in application

=====================================================


I have to add that I had experimented with Zentyal before we decided to get Exchange. I believe it imitates an Exchange 2000 Server using OpenChange. Zentyal was first added as additional DC. It was removed by hand when we decided to with Exchange.

I looked at quite a lot of posts but haven't found a solution yet.

Does anybody have an idea to solve this problem?

Thanks and best regards,

Eggbert

Outlook Client Prompted for Authentication Exchange 2013/2007 Coexistence

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I'm having trouble with external authentication. Users are getting a prompt for credentials.  I'm not sure if this is normal or not for a pc not joined to the domain.  I don't think it is.

I'm testing by creating a new profile on my pc at home.  I follow the Outlook 2007 wizard for exchange.  Setup my email address and password.  After it starts going through autodiscover I get an authentication prompt.  I type in my domain creds and everything connects.

I'm guessing this has something to do with the authentication enabled on the servers.  I'm using NTLM and Basic. 

I'm also having problems with Public Folders expanding externally as well.  If that is any hint on what is wrong.

Everything inside works as planned.

I'm using ARR 3.0 for my proxy.


David Jenkins

2007-2013 migration - Migration batch created then changes to ZERO total

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Migrating from 2007 to 2013. Can create migration batch in console and it initially says syncing with total mailboxes listed.

After about 10 minutes, it goes complete but totals are ZERO.

Seen this before when there are outstanding move requests but get-moverequest reports zero. We've done a bit of playing around with these users so I'm wondering if theres a user flag somewhere here.

Apart from this we've experimented with turning off content indexing and replication for the destination 2013 server (but its all set back to standard now).

Not even sure where to find migration log files to check why its doing this? Any ideas?

Event id 5000 after moving mailbox from 2010 to 2013 server

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After succesfull moving mailboxes from Exchange 2010 to Exchange 2013 (single all role servers in same Forest/AD) error messages are displayed in the eventviewer:

source: MSExchange Management Application
id: 5000

Failed to save admin audit log for this cmdlet invocation.
Organization: First Organization
Log content:
Cmdlet Name: Update-MovedMailbox
Caller: NT AUTHORITY\SYSTEM (MSExchangeMailboxReplication)

Microsoft.Exchange.Management.SystemConfigurationTasks.AuditLogException: An error occurred while trying to access the audit log. For more details, see the inner exception. ---> System.Net.WebException: The underlying connection was closed: Could not establish trust relationship for the SSL/TLS secure channel. –> The remote certificate is invalid according to the validation procedure..

I do have installed a valid 3rd party certificate, all works well on both servers (2010 and 2013). How to fix this before I migrate all other mailboxes from 2010 to 2013?

Thnx Remco


Exchange 2013 DR Bandiwth calculator

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Hi Team,

I had question, I want to deploy Exchange 2013 DR DAG, and I have to calculate WAN bandwith requirement from HQ to DR

for example this case, I have 4 database, total that 4 database generate 10.000 log per day (1mb size per log)

how much bandwith I have to provide ? for this example requirement

I hope you can give me basic formula :)

Thanks


Adding an Edge server

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Hi everyone,

We are currently investigating to add an Edge server to our network.

Our current setup is:
2x DC (Server 2012 R2)
2x HUBCAS Exchange 2013 with DB sync (Server 2012 R2)

I cannot find an article on how to add a Edge server to an existing network and transfer the settings or other data which is needed.

Can anyone help me out?

Error While Prepare AD for Exchange Server 2013 CU8 to install CU10

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Hi Team

We are facing error while Running the Prepare AD/IAcceptExchangeServerLicenseTerms

Please have a look on the error

=====================================================================

Welcome to Microsoft Exchange Server 2013 Cumulative Update 10 Unattended Setup

Copying Files...

File copy complete. Setup will now collect additional information needed for

installation.

 

Performing Microsoft Exchange Server Prerequisite Check

 

    Prerequisite Analysis                                     FAILED

==========================================================

Setup will prepare the organization for Exchange 2013 by using 'Setup /PrepareAD'. No Exchange 2007 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2007 servers.

For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.NoE12ServerWarning.aspx

 

Setup will prepare the organization for Exchange 2013 by using 'Setup /PrepareAD'. No Exchange 2010 server roles have been detected in this topology. After this operation, you will not be able to install any Exchange 2010 servers.

For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.NoE14ServerWarning.aspx

 

     A reboot from a previous installation is pending. Please restart the system

and then rerun Setup.

     For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.RebootPending.aspx

 

     Global updates need to be made to Active Directory, and this user account i

sn't a member of the 'Enterprise Admins' group.  For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.GlobalUpdateRequired.aspx

 

     The local domain needs to be updated. You must be a member of the 'Domain Admins' group and 'Organization Management' role group, or 'Enterprise Admins' group to continue.

     For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.LocalDomainPrep.aspx

 

     Setup encountered a problem while validating the state of Active Directory:

Exchange organization-level objects have not been created, and setup cannot create them because the local computer is not in the same domain and site as the schema master.  Run setup with the /prepareAD parameter on a computer in the domain XYZ.com and site Exchange, and wait for replication to complete.  See theExchange setup log for more information on this error.

     For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx

 

     The forest functional level of the current Active Directory forest is not Windows Server 2003 native or later. To install Exchange Server 2013, the forestfunctional level must be at least Windows Server 2003 native.     For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.ForestLevelNotWin2003Native.aspx

 

     Either Active Directory doesn't exist, or it can't be contacted. For more information,

visit: http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.CannotAccessAD.aspx

 

The Exchange Server setup operation didn't complete. More details can be found

in ExchangeSetup.log located in the <SystemDrive>:\ExchangeSetupLogs folder.

=========================================================================

Account is having the admin Permissions -  Administrator , enterprise admin , domain admin , schema admin , exchange enterprise servers, exchange install Domain Servers , Exchange Organization Admin, Exchange Service , Exchange Trusted Subsystem ,Exchange View-Only Administrators , Oraganization Mgmt ,  

Also restarted the Server.

Stiil we are facing the same issue. . .

Please suggest what changes need to be done  . ... 

IMAP stopped working after CU10

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IMAP crashed and not working after applying the CU10 on top of Exchange 2013 CU10. I read the KB that "This issue occurs because Internet Mail Access Protocol (IMAP) does not support the generic security services application programming interface (GSSAPI) as an authentication mechanism in a Microsoft Exchange Server 2013 environment "

and I tried to enable Set-IMAPSettings –EnableGSSAPIAndNTLMAuth:$FALSE

and no luck, still IMAP asking for a credentials again and again. POP is working fine.
I can see the IMAP protocol log, there are msgs

"IN:9933:SSL;ErrMsg=ProxyNotAuthenticated;LiveIdAR=OK""

"authenticate,NTLM,"R=""l7z2 NO AUTHENTICATE failed."";"

the IMAP settings are

[PS] C:\Windows\system32>Get-ImapSettings | format-list


RunspaceId                        : 32a6432b-de4f-4730-adf3-6595ccb25ce8
ProtocolName                      : IMAP4
Name                              : 1
MaxCommandSize                    : 10240
ShowHiddenFoldersEnabled          : False
UnencryptedOrTLSBindings          : {[::]:143, 0.0.0.0:143}
SSLBindings                       : {[::]:993, 0.0.0.0:993}
InternalConnectionSettings        : {essrv011.****.IN:993:SSL, essrv011.***.IN:143:TLS}
ExternalConnectionSettings        : {}
X509CertificateName               : email.***.ac.in
Banner                            : The Microsoft Exchange IMAP4 service is ready.
LoginType                         : SecureLogin
AuthenticatedConnectionTimeout    : 00:30:00
PreAuthenticatedConnectionTimeout : 00:01:00
MaxConnections                    : 2147483647
MaxConnectionFromSingleIP         : 2147483647
MaxConnectionsPerUser             : 16
MessageRetrievalMimeFormat        : BestBodyFormat
ProxyTargetPort                   : 9933
CalendarItemRetrievalOption       : iCalendar
OwaServerUrl                      :
EnableExactRFC822Size             : False
LiveIdBasicAuthReplacement        : False
SuppressReadReceipt               : False
ProtocolLogEnabled                : True
EnforceCertificateErrors          : False
LogFileLocation                   : C:\Program Files\Microsoft\Exchange Server\V15\Logging\Imap4
LogFileRollOverSettings           : Daily
LogPerFileSizeQuota               : 0 B (0 bytes)
ExtendedProtectionPolicy          : None
EnableGSSAPIAndNTLMAuth           : False
Server                            : ESSRV011
AdminDisplayName                  :
ExchangeVersion                   : 0.10 (14.0.100.0)
DistinguishedName                 : CN=1,CN=IMAP4,CN=Protocols,CN=ESSRV011,CN=Servers,CN=Exchange Administrative Group
                                    (FYDIBOHF23SPDLT),CN=Administrative Groups,CN=****,CN=Microsoft
                                    Exchange,CN=Services,CN=Configuration,DC=***,DC=AC,DC=IN
Identity                          : ESSRV011\1
Guid                              : 4ed7aaa3-90b7-4c3b-b373-bccccf85fcf3
ObjectCategory                    : ****.IN/Configuration/Schema/ms-Exch-Protocol-Cfg-IMAP-Server
ObjectClass                       : {top, protocolCfg, protocolCfgIMAP, protocolCfgIMAPServer}
WhenChanged                       : 22-09-2015 20:02:07
WhenCreated                       : 22-07-2015 18:54:19
WhenChangedUTC                    : 22-09-2015 14:32:07
WhenCreatedUTC                    : 22-07-2015 13:24:19
OrganizationId                    :
Id                                : ESSRV011\1
OriginatingServer                 : ***.IN
IsValid                           : True
ObjectState                       : Unchanged

3 node CAS and 3 node Mailbox DAG is my environment.

Pl. help put


Public Folders in hybrid deploymen

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Hi,

I'm working on a hybrid deployment (fully patched on premise exchange 2013) to have a smooth move to exchange online. Atm I can move users to the cloud and the normal mail flow is running. Everything is fine so far.

The next steps will be:

  1. Make public folders usable for online and local users and leave pf local.
  2. Move all users in the next weeks to the cloud
  3. Move public folders to the cloud
  4. Uninstall on premise exchange

Ok, tried to work with that: https://technet.microsoft.com/en-us/library/dn986544(v=exchg.150).aspx

But... I got some questions:

Step 1: When I allready got public folder mailboxes: Why should I make new one? Is this on premise? Or do I have to make them in exchange online?

If I don't need to make new PF: Step4: Did that and I get from outlook a conflict that they couldnt access the server with the public folders.

Should we use .NET Framework 4.6 with CU9 ?

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As we plan to upgrade our Exchange 2013 SP1 (CU4) to CU9,   we also planned to update the .NET Framework to 4.5.2   (so we could use MAPI/HTTP, etc.).

Exchange 2013 is running on Windows 2012 Standard (not R2).

Now we see that .NET Framework 4.6 is available.

Has Microsoft verified that 4.6 will work well with CU9 ?

On the Exchange 2013 CU9 servers, should we use .NET Framework 4.6 ?

Thanks

==

Migrating from Exchange 2003 to 2013

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I know there isn't a migration path for Exchange 2003 but has anyone tried any type of work around?  I'm thinking about moving one of my customers users mailboxes to PST files and them importing them into Exchange 2013 on a 2012 server.  Has anyone had any experience doing this?  Below are the details of what I have and what I was thinking about doing:

Small Network - approx. 10 users

Server 2003 Sp3 standalone AD DC with Exchange 2003

Would like to move straight to Server 2012 with Exchange 2013

If I export the mailboxes and uninstall Exchange from the 2003 server will Server 2012 join the domain and upgrade the existing AD schema (forest and domain)?  If it would, could I then install Exchange 2013 on that server, create the mailboxes for the users and import the PST files?

Just wondering if anyone has tried this, or something similar.  They don't have an extra server to move everything to 2010 first so it's either a workaround or move them to Exchange 2010 (which Microsoft has quit selling).  I'm sure this will put a lot of small business VARs in a bad situation. 

(Just as a side note) Is it true that Dell and HP have quit selling Windows 7 Pro? My vendor still sells it and will for 18 more months.

Exchange server multi forest migration to Office 365 (Exchange on-line)

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Hi everyone.

I have a scenario where I need to migrate approx. 30,000 linked mailboxes to office 365.

Below is the scenario...

I have two forest. Forest A and Forest B.

Forest A have all user accounts

Forest B have all Linked mailboxes and exchange server configured with mixed set of exchange 2010 & 2013.

Now, I want to directly migrate all linked mailboxes to single Office 365 tenant without converting them first to user mailbox in forest A. also, I want to configure a hybrid deployment with this.

I have also gone through some articles saying that multi forest migration is supported by using AADsync/DIRsync utility by setting up some filtering options.

I just want to know that if linked mailbox migration to office 365 and setting up the hybrid deployment with this is possible?

Is it officially supported from Microsoft?

Any help is greatly appreciated.

Thanks


Sandeep Tiwari. (Sandy)


exchange 2013 install Issues old 2000 or 2003 on domain error

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I have built a new 2012r2 server, which will be our new exchange server, I have completed all prereqs for installation of exchange 2013, when running the initial system checks I receive an error that exchange 2013 cannot be installed because there is a exchange 2000 or 2003 existing on the domain. well the problem is I don't have either one of those servers, we are running exchange 2007 on a win server 2003std. before I came onboard they were running exchange 2000 and upgraded to exchange 2007. I have went into adsiedit.msc and searched for any ref of a exchange 2000 server. and nothing exists. This is a brand new server with nothing but the 2012r2. There are no other exchange servers on my network. How can I get by this issue and complete my install. where else can I search on the network for old exchange remnants? Is there a work around?

Thanks for your help

Tee

Zimbra mail server migration to MS. Exchange server 2013

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Hi Guys,

Question regarding email server migration, since I'm new to mail server migration from zimbra. Need help for this one, starting from the pre requirement for the exchange server it self and tool to perform the migration.

his project will perform next month.

Thx.

GLS

Cross Forest Exchange Linked Mailbox Migration

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Hi,

I know that cross forest migration is much easy after Exchange 2010 PowerShell capability but slightly confused about linked mailbox migration.

Requirement is as below

1. Central Datacenter is having AD parent Domain abc.com and child domaincountry.abc.com. Exchange 2013 environment implemented for all central users.

2. Some country of organization have their own Exchange environment which is implemented altogether on separate AD forest and Exchange Organization- SMTP Domain ascountry.xyz.com

3. Users in xyz.com are having linked mailbox which means their AD account is in child Domain (country.abc.com)

4. Now the requirement is to migrate all country mailbox to central Exchange environment.

5. Since Central AD is having Child domain for each country as country.abc.com and its respective AD users for each country, we just wanted to migrate Mailbox from remote country setup to central Exchange setup.

6. SMTP domain name of remote country will not be changed at this stage and it needs to be continues as same after moving to central Exchange Servers as well.

My confusion here is-

when we already have a AD account in child domain, will there be any issue/challenge in migrating mailbox from remote forest exchange organization?

Pls suggest the way ahead

Central setup is Exchange 2013 and remote country are having Exchange 2010


Regards:Mahesh

Cannot Access EMS After CU9 Update

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I upgraded our two exchange servers to build 15.0.1104.5 and afterwards I cannot get into the management shell on one of them. Everything else seems to be working fine like the ECP and I'm able to manage it through EMS through the other server. Below is the error message I'm getting and I have found very little on it when searching. I would appreciate any assistance.


New-PSSession : [SERVER2] Connecting to remote server SERVER2 failed with the
following error message : <!DOCTYPE html><html><head><title>Configuration Error</title><meta name="viewport" content="width=device-width" /><style>
         body {font-family:"Verdana";font-weight:normal;font-size: .7em;color:black;}
         p {font-family:"Verdana";font-weight:normal;color:black;margin-top: -5px}
         b {font-family:"Verdana";font-weight:bold;color:black;margin-top: -5px}
         H1 { font-family:"Verdana";font-weight:normal;font-size:18pt;color:red }
         H2 { font-family:"Verdana";font-weight:normal;font-size:14pt;color:maroon }
         pre {font-family:"Consolas","Lucida Console",Monospace;font-size:11pt;margin:0;padding:0.5em;line-height:14pt}
         .marker {font-weight: bold; color: black;text-decoration: none;}
         .version {color: gray;}
         .error {margin-bottom: 10px;}
         .expandable { text-decoration:underline; font-weight:bold; color:navy; cursor:hand; }
         @media screen and (max-width: 639px) {
          pre { width: 440px; overflow: auto; white-space: pre-wrap; word-wrap: break-word; }
         }
         @media screen and (max-width: 479px) {
          pre { width: 280px; }
         }</style></head><body bgcolor="white"><span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1><h2> <i>Configuration Error</i> </h2></span><font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif "><b> Description: </b>An error occurred during the processing of a configuration file required to service
this request. Please review the specific error details below and modify your configuration file appropriately.<br><br><b> Parser Error Message: </b>An error occurred loading a configuration file: Failed to start monitoring
changes to 'E:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\web.config' because access is denied.<br><br><b>Source Error:</b> <br><br><table width=100% bgcolor="#ffffcc"><tr><td><code><pre>
[No relevant source lines]</pre></code></td></tr></table><br><b> Source File: </b> E:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\web.config<b>&nbsp;&nbsp; Line: </b> 0<br><br><hr width=100% size=1 color=silver><b>Version Information:</b>&nbsp;Microsoft .NET Framework Version:4.0.30319; ASP.NET
Version:4.0.30319.34209</font></body></html><!--
[HttpException]: Failed to start monitoring changes to &#39;E:\Program Files\Microsoft\Exchange
Server\V15\ClientAccess\web.config&#39; because access is denied.
   at System.Web.DirectoryMonitor.AddFileMonitor(String file)
   at System.Web.DirectoryMonitor.StartMonitoringFileWithAssert(String file, FileChangeEventHandler callback, String
alias)
   at System.Web.FileChangesMonitor.StartMonitoringFile(String alias, FileChangeEventHandler callback)
   at System.Web.Configuration.WebConfigurationHost.StartMonitoringStreamForChanges(String streamName,
StreamChangeCallback callback)
   at System.Configuration.BaseConfigurationRecord.MonitorStream(String configKey, String configSource, String
streamname)
   at System.Configuration.BaseConfigurationRecord.InitConfigFromFile()
[ConfigurationErrorsException]: An error occurred loading a configuration file: Failed to start monitoring changes to&#39;E:\Program Files\Microsoft\Exchange Server\V15\ClientAccess\web.config&#39; because access is denied. (E:\Program
Files\Microsoft\Exchange Server\V15\ClientAccess\web.config)
   at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
   at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean
checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
   at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
   at System.Web.Configuration.RuntimeConfig.GetSectionObject(String sectionName)
   at System.Web.Configuration.RuntimeConfig.GetSection(String sectionName, Type type, ResultsIndex index)
   at System.Web.Configuration.RuntimeConfig.get_CustomErrors()
   at System.Web.Configuration.CustomErrorsSection.GetSettings(HttpContext context, Boolean canThrow)
   at System.Web.HttpResponse.ReportRuntimeError(Exception e, Boolean canThrow, Boolean localExecute)
   at System.Web.HttpContext.ReportRuntimeErrorIfExists(RequestNotificationStatus& status)
-->Error occurred during the Kerberos reponse.

Exchange 2010 - EWS and disabling TLS 1.0

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Hi all,

Due to the POODLE vulnerability and TLS 1.0 showing as enabled on one of our external scans, we were informed that we would need to disable SSL 3.0 and TLS 1.0 on our Exchange server.

Apparently, this wouldn't even be possible until Update Rollup 9 was released on 3/16/15:

Rollup resolves:

KB 3029667 SMTP is not transported over TLS 1.1 or TLS 1.2 protocol in an Exchange Server 2010 environment

After installing this update, SSL 3.0 and TLS 1.0 were disabled and the servers rebooted (cross site, same domain, two Exchange servers).  After resolving some issues with certificates that apparently broke as a result of the changes, we found that EWS was not working - the log full of these errors:

Process 5776: ProxyWebRequest CrossSite from S-1-5-21-3895483984-2032760896-3917300074-1259 tohttps://mail.exchange.com:443/ews/exchange.asmx failed. Caller SIDs: NetworkCredentials. The exception returned is Microsoft.Exchange.InfoWorker.Common.Availability.ProxyWebRequestProcessingException: System.Net.WebException: The underlying connection was closed: An unexpected error occurred on a send. ---> System.IO.IOException: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

------------------------------------------------------

The EWS directory in IIS on both servers are set to use Anonymous and Windows Authentication.  The main issues observed outside of the above errors was that free/busy information could not be viewed.

After rebuilding the EWS virtual directory and a couple reboots later, we tried enabling TLS 1.0 on both servers, rebooted, and there were no more EWS errors to be found - free/busy was also working.

So it appears that although this rollup allows SMTP to use TLS 1.1 or 1.2, EWS is still attempting to use TLS 1.0, and I don't see that it is possible to change this

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