Exchange 2013 - Unbound Stretched Active/Active DAG

I'm designing an Active/Active DAG utilizing a 3-site scenario, with the third site for FSW.
I intend to have 3 CAS+MBX servers in each location.
Site A & B are separately co-located and Site C is geographically distant site for the FSW
Should the WAN connections of Site A go down (for whatever reason), do the passive copies of Site A's DB's on Site B automatically mount?
What happens with the copies in Site A when this is going on, and what occurs when the links are restored? Is there any manual intervention required here and is DAC/Split-Brain syndrome a concern at all?
What if the client doesn't want Auto-failover, can blockautoactivation be set for the passive DB's to -SiteOnly?

Hi Hayley,
Q:- Should the WAN connections of Site A go down (for whatever reason), do the passive
copies of Site A's DB's on Site B automatically mount?
Yes it could be automatically mount depends on DAC mode, you should enable it by default it is disable.
Q:- What happens with the copies in Site A when this is going on, and what occurs when the links
are restored? Is there any manual intervention required here and is DAC/Split-Brain syndrome a concern at all?
Site A copy would be like Passive Copy which will get the log shipping from Site B once the WAN link will be up and running, as the DAC mode is enable will not allow
the Site A database to mount its database once it will up and running,
You can later change your active copy to Site A.
Q: - What
if the client doesn't want Auto-failover, can blockautoactivation be set for the passive DB's to -SiteOnly?
Please check the below link for better understanding.
http://technet.microsoft.com/en-us/library/dd979790(v=exchg.150).aspx
Thanks & Regards
Ashish Gaur
Ashish Gaur

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Exchange 2013 database unplaned to active on another mailbox server

we have to four mailbox servers, two in primary site, two in dr site. it happens an unplaned failover issue, all of database are actived on mailbox server1, but some hours later, these database are unplaned to active on another mailbox server2, it also happens
in mailbox server2. that's why? after check eventlog, I found below:
AppLogEventID: 3169
AppLogEventMessage:
(Active Manager) Database MDB00 was successfully moved from shmbx01.ebaotech.com to SHMBX02.ebaotech.com. Move comment: Managed availability system failover initiated by Responder=OutlookRpcDeepTestFailover Component=Outlook.
also check server health, found OutlookRpcDeepTestMonitor is degraded, OutlookRpcSelfTestMonitor  is unhealty
Server State         Name
TargetResource                             HealthSetName    AlertValue ServerComponent
shmbx01 NotApplicable OutlookRpcSelfTestMonitor
Outlook.Protocol Unhealthy None
shmbx01 NotApplicable OutlookRpcDeepTestMonitor
Outlook.Protocol Degraded   None
shmbx01 NotApplicable PrivateWorkingSetWarningThresholdExceeded.m.e.rpcclientaccess.service microsoft.exchange.rpcclientaccess.service Outlook.Protocol Healthy    None
shmbx01 NotApplicable ProcessProcessorTimeErrorThresholdExceeded.m.e.rpcclientaccess.service microsoft.exchange.rpcclientaccess.service Outlook.Protocol Healthy    None
shmbx01 NotApplicable ExchangeCrashEventErrorThresholdExceeded.m.e.rpcclientaccess.service   microsoft.exchange.rpcclientaccess.service Outlook.Protocol Healthy    None
shmbx01 NotApplicable OutlookMapiHttpSelfTestMonitor
Outlook.Protocol Healthy    None
shmbx01 NotApplicable OutlookMapiHttpDeepTestMonitor
Outlook.Protocol Healthy    None
I don't know what causes this issue, and how can I resovle it to prevent the database unplaned failover, please help to look into it. thanks.

Hi,
Based on my knowledge, this issue can be caused by the following reasons:
1. Antivirus software. Please disable the Antivirus software to see if it works.
2. LmCompatibilityLevel. For Windows server 2008 R2 or Windows server 2012, this value should be 3. I suggest you modify the value to 3 on all of your Exchange 2013 servers to check the result.
2. Outlook responders. Please try to disable the Outlook responders to check the result.
Best regards,
Belinda
Belinda Ma
TechNet Community Support

Migration Exchange 2010 to Exchange 2013 with CAS Array and DAG

Dear All,
I am starting the migration of Exchange 2010 2 servers (CAS/Mailbox) with DAG no CAS Array to Exchange 2013 with 2 servers CAS array and 2 Mailbox servers with DAG. I read on some blogs that no requirement of CAS array on Exchange 2013. My concern how to
configure NLB on CAS servers for the client to connect.
Please guide and have any deployment guide for this, kindly share.
Thanks

Hi ,
As you said there is no use and meaning of having the cas array in exchange 2013 and also thanks a lot to Microsoft for introducing an single namespace facility in exchange 2013.
My suggestion and Microsoft recommendation should be to go with hardware load balancers for exchange 2013 rather than using the windows NLB and round robin method.
Why we need to go for HLB ?
Disadvantages
of some load balancing methods :
Windows
NLB :-
If you use Windows NLB then it can provide redundancy on server level failure and not on application level.
DNS
round robin :-
In case if we use the windows round robin method for load balancing then it wouldn't provide server level
and application level redundancy during the failures.At the Same time we need to manually adjust the DNS records during the server failure but on the client end dns caches will create the issues.
Configuring NLB for exchange 2013 :
http://msexchangeguru.com/2013/08/14/windowsnlb/
NLB configurations for exchange 2010 and 2013 will be same.
Configuring round robin for exchange 2013 :
http://exchangeserverpro.com/exchange-2013-client-access-server-high-availability/
Advisable method is to have the CAS and MBX roles on the same box if NLB not comes it to play.Because windows failover clustering and NLB cannot be configured on the same box.In exchange 2013 cas role is a stateless server role so there is no need to have
that role on a separate box.
Thanks & Regards S.Nithyanandham

Exchange 2013 mail contact in Active Directory missing SMTP email address but has a primary email address

Outlook 2010 Distribution Group contact member "Al" is not showing an email address. In Active Directory "Al" is showing an email address but it's not a SMTP email address that is created when you add a new Mail contact using EAC.
When the DG owner sends out an email using DG email account, the mail bounces back as undeliverable.
Exchange Admin Center is not showing the member. The only way to fix the member is by deleting the contact. Re-add contact in EAC then add to Distribution Group. We have over 30 DGs that are missing the SMTP email addresses.
Can a Powershell command fix this issue or is there a sync issue between AD and Exchange?

Hi,
From your description, the contact you specified should be contact not mail contact. Contact and mail contact are two different things. If you create a contact in ADUC, you need to mail-enable it and then set the primary SMTP address for it.
For more information, here is an article for your reference.
Recipients
http://technet.microsoft.com/en-us/library/bb201680(v=exchg.150).aspx
Hope my clarification can be helpful to you.
Best regards,
Amy Wang
TechNet Community Support

Cannot move Exchange 2013 "Discovery Search Mailbox" to DAG database! :(

I want to get rid of the default mailbox database but it won't allow me because it says it still have mailboxes. I ran:
"Get-mailbox -database "Default Mailboxdatabase name" and it shows the "DiscoverySearchMailbox" still there. I was able to move all the other arbitration mailboxes to my DAG database.
I then ran:
Get-mailbox -database "DB Name" | new-moverequest -targetdatabase "DB Name"
and
Get-Mailbox -Filter { RecipientTypeDetails -eq "DiscoveryMailbox" } | new-moverequest -targetdatabase "DB Name"
and both times I receive a long error:
MapiExceptionMdbOffline: Unable to make connection to the server. (hr=0x80004005, ec=1142)
Diagnostic context:
Lid: 41192 dwParam: 0x1
Lid: 49384
Lid: 51176 StoreEc: 0x476
Lid: 48104
Lid: 39912 StoreEc: 0x476
Lid: 41192 dwParam: 0x2
Lid: 49384
Lid: 51176 StoreEc: 0x476
Lid: 48104
Lid: 39912 StoreEc: 0x476
Lid: 41192 dwParam: 0x0
Lid: 49064 dwParam: 0x1
Lid: 38439 EMSMDBPOOL.EcPoolConnect called [length=48]
Lid: 54823 EMSMDBPOOL.EcPoolConnect returned [ec=0x476][length=20][latency=0]
Lid: 53361 StoreEc: 0x476
Lid: 51859
Lid: 33649 StoreEc: 0x476
Lid: 43315
Lid: 58225 StoreEc: 0x476
Lid: 39912 StoreEc: 0x476
Lid: 54129 StoreEc: 0x476
Lid: 50519
Lid: 59735 StoreEc: 0x476
Lid: 59199
Lid: 27356 StoreEc: 0x476
Lid: 65279
Lid: 52465 StoreEc: 0x476
Lid: 60065
Lid: 33777 StoreEc: 0x476
Lid: 59805
Lid: 52487 StoreEc: 0x476
Lid: 19778
Lid: 27970 StoreEc: 0x476
Lid: 17730
Lid: 25922 StoreEc: 0x476
+ CategoryInfo : NotSpecified: (:) [New-MoveRequest], RemoteTransientException
+ FullyQualifiedErrorId : [Server=LA3-EXMBW002,RequestId=cb04b084-0dd7-46b9-bf57-6d3317013d47,TimeStamp=3/14/2014 10:44:34 PM] 7A53F855,Microsoft.Exchange.Management.RecipientTasks.NewMoveRequest
Any ideas on moving that Discovery Mailbox? Thx!

MapiExceptionMdbOffline: Unable to make connection to the server. (hr=0x80004005, ec=1142)
That error indicates that the database is not mounted, so mounted and try again.
A workaround if you can't move the mailbox, is to rehome the mailbox to another database.
Example:
Get-Mailbox Discover* | Set-Mailbox -database <DB Name>
Martina Miskovic

Publish Exchange 2013 OWA + Active Sync + Outlook Anywhere using TMG 2010

We plan to publish our new Exchange 2013 SP1 servers (3 in DAG) outside corporate network using TMG 2010. I am looking for some guide how to do it in the proper way. What I found is little old and does not take into consideration Exchange 2013
SP1
http://blogs.technet.com/b/exchange/archive/2012/11/21/publishing-exchange-server-2013-using-tmg.aspx
Any advice how to publish Exchange 2013 OWA using form-based authentication and how to use Kerberos Constrained Delegation?

Hi,
The blog below describes some scenarios about publishing Exchange. You could have a look the Scenario 2.
Exchange publishing after TMG/UAG
http://dizdarevic.ba/ddamirblog/?p=168
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Joyce
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are trying to better understand customer views on social support experience, so your participation in this
interview project would be greatly appreciated if you have time.
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DAG with Exchange 2010 & Exchange 2013

Hello,
I'd like to implement DAG in the system, but I was wondering if it is possible to use DAG in Exchange 2010 and 2013 environment?
Estimated amount of servers:
Exchange 2010 Standard
Exchange 2013 Enterprise
Exchange 2013 Enterprise
What I'm planning to do is moving all the mailboxes, public folders from Exchange 2010 Standard to Exchange 2013 Enterprise, then start using DAG and make Exchange 2010 as a member of DAG. Is it possible?
Thank you in advance.

Hello,
You cannot mix Exchange 2010 and 2013 versions in the same DAG. In your situation you need
to create Exchange 2013 DAG and migrate all resources (mailboxes, public folders, mailflow settings etc). When finished, you will be able to decommission old server.
Hope it helps,
Adam
CodeTwo: Software solutions for Exchange and Office 365
If this post helps resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.

Exchange 2013 SP1 CU8 installation stuck

Good Morning,
I'm just installing CU8 for Exchange 2013 on a DAG Member (only mailbox role installed), and setup is stuck at 49% of "Mailbox Role: Client Access service" for more than 2 hours now.
The ExchangeSetup logfile says:
[04/15/2015 06:44:20.0582] [2] Active Directory session settings for 'New-PerfCounters' are: View Entire Forest: 'True', Configuration Domain Controller: 'srv-dc02.oostvogels.com', Preferred Global Catalog: 'dc02.contoso.com', Preferred Domain Controllers: '{ dc02.contoso.com }'
[04/15/2015 06:44:20.0582] [2] User specified parameters: -DefinitionFileName:'ServiceProxyPoolCounters.xml'
[04/15/2015 06:44:20.0582] [2] Beginning processing new-PerfCounters
[04/15/2015 06:44:20.0582] [2] Processing file: C:\Program Files\Microsoft\Exchange Server\V15\Setup\Perf\ServiceProxyPoolCounters.xml
[04/15/2015 06:44:20.0582] [2] Performance counter name is Proxy Instance Count, type is NumberOfItems32.
[04/15/2015 06:44:20.0582] [2] Performance counter name is Current Outstanding Calls, type is NumberOfItems32.
[04/15/2015 06:44:20.0582] [2] Performance counter name is Total Number of Calls, type is NumberOfItems32.
[04/15/2015 06:44:20.0582] [2] Performance counter name is Calls/sec, type is RateOfCountsPerSecond32.
[04/15/2015 06:44:20.0582] [2] Performance counter name is Average Latency, type is AverageCount64.
[04/15/2015 06:44:20.0582] [2] Performance counter name is Base for Average Latency, type is AverageBase.
[04/15/2015 06:44:20.0582] [2] Performance counter category name is 'MSExchange ServiceProxyPool'.
[04/15/2015 06:44:20.0738] [2] Performance counter category name is 'MSExchange ServiceProxyPool'.
[04/15/2015 06:44:22.0255] [2] Ending processing new-PerfCounters
Does anyone have any suggestions or did you experience a similar issue?
I also can see some events like this:
Cmdlet failed. Cmdlet New-PerfCounters, parameters -DefinitionFileName "ADDriverCachePerformanceCounters.xml".
Thanks and best regards,
Sebastian

Hi,
According to your post, I understand that install Exchange 2013 SP1 CU8 in a DAG with MBX role failed with error “Cmdlet failed. Cmdlet New-PerfCounters, parameters -DefinitionFileName ‘ADDriverCachePerformanceCounters.xml’”.
If I misunderstand your concern, please do not hesitate to let me know.
I want to double confirm whether you deploy clean install or implement upgrade an existing Exchange Server 2013 installation to Cumulative Update 8.
To rebuild all Performance counters including extensible and third-party counters, type the following commands at an Administrative command prompt. Press ENTER after each command:
1. Rebuilding the counters:
    cd c:\windows\system32
    lodctr /R
2. Resyncing the counters with Windows Management Instrumentation (WMI):
    WINMGMT.EXE /RESYNCPERF
3. Stop and restart the Performance Logs and Alerts service.
4. Stop and restart the Windows Management Instrumentation service.
If the issue persists, please run to reload all the perf counters. For your reference:
http://blogs.technet.com/b/mikelag/archive/2010/09/10/how-to-unload-reload-performance-counters-on-exchange-2010.aspx
Thanks
Please remember to mark the replies as answers if they help, and unmark the answers if they provide no help. If you have feedback for TechNet Support, contact [email protected]
Allen Wang
TechNet Community Support

A kind of hosting mode in Exchange 2013?

Hi @ all,
I have a Windwos Server 2012 as DC with AD, DNS, DHCP. Also I have a Windows Server 2012 with Exchange 2013.
In the Active Directory I have different OUs for different groups of users. Every OU has it's own Administrator. And now I want, that the Admin only can create/see/edit/delete Mailboxes and Users out of his own OU. (like hosting mode in Exchange 2010)
I used RBAC and different scopes. Now each Administrator can only manage his own OU, but sees all.
I uses this example for my scope:
New-ManagementScope -Name "Executive Mailboxes" -RecipientRoot "contoso.com/Executives" -RecipientRestrictionFilter {RecipientType -eq "UserMailbox"}
(of cours with the my attributes ;) )
But it didn't work.
In summary, I want to realise a "hosting mode" in Exchange 2013.
I've tried an long time different ways, but nothing worked.
Can anybody help me?
dechecker
Sorry for my english, it's not the best. :)

Hello,
You can refer to the following thread:
http://social.technet.microsoft.com/Forums/nb-NO/exchangeserverpreview/thread/dfe648db-4d41-4bcd-ba4f-c2e1b4ec9435
Thanks,
Simon Wu
TechNet Community Support

Exchange 2013 Shared Mailbox Get-MailboxSentItemsConfiguration SP1 Help

Hello
My Setup
Server1: Server 2012 Standard + Exchange 2013 CU2 Standard (MBX+CAS)
Server2: Server 2012 Standard + Exchange 2013 CU2 Standard (MBX+CAS)
DAG Enable
I am having problems with Shared mailboxes, when sending E-mail from the Shared mailbox the sent E-mail will show up in the recipients Sent Items insted of the Shared mailbox sent Items.
I know that in Exchange 2010 Later SP and RU there where a PowerShell command that could send a copy to the Shared mailbox Sent Items (Get-MailboxSentItemsConfiguration)
but it doesn't seem to be there anymore, does anyone know if the cmdlet is back in CU3 or SP1? will it come back?
there is a workaround (Registry) but it doesn't help us, not for our environment.
Can I set this up by Outlook rules or maybe some kind of forwarding?
If you have any experience with this, feel free to give some advice.
Thank You very much!

Hi,
*.MailboxSentItemsConfiguration has not been brought back in CU3 or CU4/SP1 and I don't know if it ever will be.
If DelegateSentItemsStyle configured in the registry is not an option for you, then using multiple Exchange accounts in the same Outlook Profile might be. The support for that was added in Outlook 2010 and personally, I like that option a lot.
Martina Miskovic

Can not Establish Connection between outlook and exchange 2013

hi guys
i recently install my exchange 2013 sp1. I configured DAG and its working great.
but the main problem is outlook. I deploy all of the dns records in my public dns but now i cannot establish any connection between exchange 2013 and outlook 2013.
I mean when i want to create a new email account for my users i face with this error :
" the name cannot be resoved. the connection to microsoft exchange is unavailable . outlook must be online to connected to complete this action "
and finally when i study an article it refers to enable mapi over https in exchange 2013, I enabled it by powershell cmdlet but when i want to test it it gives me error :D
help me plz :D

Hi,
We need to configure Exchange Server 2013 for mail flow and client access with the following steps.
Create a Send Connecter
Add Additional accepted domains.
Configure the default email address policy.
Configure External URL.
Step5: Configure Internal URL.
Configure an SSL certificate.
For more details, please refer to this document.
http://technet.microsoft.com/en-us/library/jj218640(v=exchg.150).aspx
If there is any further question, please let us know.
Best Regards.

Moving 2nd Exchange 2013 server to another site

Hi there, looking for some insight into a task that has been assigned to me. We have two Exchange 2013 servers setup in a DAG environment. I've been asked to move the secondary to another site. If anyone has gone through this process, do you have any suggestions
or tips
Off the top of my head
Maintenance mode enabled on secondary exchange server
Shutdown VM
Copy to External drive
Ship external drive to secondary site
Create VM and assign new IP
Ensure DNS name for secondary is pointing to the new IP
Boot and turn off Maintenance mode on secondary server
Ensure DAG is replicating over
Questions
Do I have do change anything to ensure exchange realizes it's now off site? The new IP that will be assigned is bound to our secondary site in AD. Example 10.333.333.* = DR-SITE.
Anything I've missed in the steps brainstormed above?
Thank you to all who reply. I am somewhat green when it comes to Exchange but am trying my best to research.
-TSGzz

I would probably take a different approach if possible:
Build new Exchange Server in New Site (making sure storage passes).
Configure Vdirs and add to dag
Add Database Copies
Once database copies are seeded remove old server from the dag and retire it.
I like this method better, b\c you still keep some high availability while you are getting the second site together. PLuS you don't end up not being able to prune you log files since replication would be so far behind once you stand up the server in
the new site.
If you can't do that your steps look like they cover everything.

Send connector for forwarded emails not being used by Exchange 2013

Hi we have 3 Exchange 2013 CU5 servers in a DAG setup and need to forward emails for some of the users to another domain. The problem is our outgoing spam filter seems to quarantine a lot of these emails which are not spam. The problem is that I
created a send connector for the domain we are forwarding to (say contonso.com for illustrative purposes). Gave the send connector the name contonso.com, selected use MX record (didn't select Use the external DNS lookup settings on servers with transport
roles) and added contonso.com in the address space gave it cost of 1. Added all the exchnage servers under source server. And clicked save. I then changed the cost to 2 on the main send connector with the domain as * which goes trhough our oput bound spam
filter yet email I send to one of the recipients with a forward inplace still go through that connector. Can anyone tell what i'm doing wrong or explain why this wouldn't work as expected ?

Easy question, did you enable the connector? :)
Do you have more than one site in your org?
DJ Grijalva | MCITP: EMA 2007/2010 SPA 2010 | www.persistentcerebro.com

Creation of a second Exchange 2013 server on a different site (with the roles of MBX and CAS) fails on prepare active directory and prepare schema.

Hello everyone
I have a network infrastructure consisting of 3 sites, site A, site B, and site C. i have 2 domain controllers on every site, and the AD roles are on the primary domain controller on site A. On site A I have an Exchange 2013sp1 CU6.
I want to create a second Exchange on Site B, with the roles of mailbox (the exchange on Site A will be first DAG member and the Exchange on Site B will be the second member of the DAG) and CAS.
First question: Is my thought correct about installaing on the same server mailbox and CAS server?
Second question: how many DAG witnesses I need for the DAG? One per site, or one in general (for example located on site A)
Third question: When I am trying to perform “Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms” I receive the error
“ Setup encountered a problem while validating the state of Active Directory:
The Active Directory schema version (15303) is higher than Setup's version (15292). Therefore, PrepareSchema can't be executed. See the Exchange setup log for more information on this error. For more information, visit:
http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx “
I tried to run the PrepareSchema from the ISO of Exchange 2013 SP1 and form the extracted content of Exchange 2013SP1 CU6 archive, but still receive the same error. Any ideas?
Thanks in advance.

Thank you for your answer,
I have tried to run "Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms” from
Exchange 2013 CU6 media, but I still receive the error:
The Active Directory schema version (15303) is higher than Setup's version (15292). Therefore, PrepareSchema
can't be executed. See the Exchange setup log for more information on this error. For more information, visit:http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx “
any ideas?

Exchange active sync cannot connect to server after migration mailbox user from exchange 2007 to exchange 2013 coexistence

Hello, everyone, my name is rafl
I have a problem with exchange 2013 active sync.
I have installed exchange 2013 coexistence with legacy exchange 2007, I have to migrate user mailboxes: [email protected] from exchange 2007 to exchange 2013.
but any problem with active sync connection on the mobile device after moving mailbox user. I reconfigure the exchange ActiveSync external connection domain (latest.domain.com) on mobile device replacing legacy exchange ActiveSync external connection domain
(legacy.domain.com)
the process of moving mailboxes successfully without error.
Access OWA for exchange 2007 and exchange 2013 is running normally
access mail from Outlook running normally
Certificate request has been installed and has no problem with it
The OWA virtual directory is configured for internal and external connections and different from the legacy exchange
The autodiscover virtual directory is configured for internal and external connections and different from the legacy exchange
ActiveSync virtual directory is configured for internal and external connections and different from the legacy exchange
user mailboxes are still on exchange 2007 is not problematic.
only problem with Exchange Active Sync on mobile devices, where I set up an email with android, iphone, windows phone. the error message: cannot connect to the server.
but, if I create a new user and create user mailboxes directly in exchange server 2013, ActiveSync can run without error on mobile device, access through OWA, MsOutlook, Outlook Anywhere also run normally.
only the results of user migration from exchange 2007 to exchange 2013 which is troubled with exchange ActiveSync connection.
any ideas for this problem, and what should I check on the exchange server ..?

i have run the activesync test connectivity and get some error :
Testing TCP port 443 on host domain.co.id to ensure it's listening and open.
The specified port is either blocked, not listening, or not producing the expected response.
A network error occurred while communicating with the remote host.
Elapsed Time: 3091 ms.
Testing TCP port 443 on host autodiscover.domain.co.id to ensure it's listening and open.
The specified port is either blocked, not listening, or not producing the expected response.
A network error occurred while communicating with the remote host.
Elapsed Time: 21072 ms.
Testing TCP port 80 on host autodiscover.domain.co.id to ensure it's listening and open.
The specified port is either blocked, not listening, or not producing the expected response.
A network error occurred while communicating with the remote host.
Elapsed Time: 21049 ms.
I have allowed access to port 443 (https) and 80 (http) on the firewall and re-run testconnectivity, but still with the same results. if I enable active sync for users who created directly in Exch 2013 there is no problem with the ActiveSync, just a problem
for users who moved from Exch 2007 to Exch 2013. @Android, iPhone, and Blackberry the error message "cannot connect to the server"

Exchange 2013 - Unbound Stretched Active/Active DAG

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