The UC Architects Podcast Ep57

Posted on May 3, 2016 by Michel de Rooij

iTunes-Podcast-logo[1] Episode 57 of The UC Architects podcast is now available. This episode is hosted by Pat Richard, who is joined by Steve Goodman and Tom Arbuthnot. Editing was done by Andrew Price.

Topics discussed in this episode are:

Microsoft is rolling back the mailbox anchoring change for remote PowerShell that was introduced in 2013 CU11
Exchange 2013 and 2016 Exmon tool is now available
A friendly reminder that WMF (PowerShell) 5.0 is currently not supported with any version of #MSExchange
Exchange says no to .NET Framework 4.6.1
Hybrid Shared Mailbox access is now supported
Announcing the new Office 365 admin center
Office 365 Reporting web service and Windows PowerShell cmdlets
Office 365 Hybrid Configuration wizard for Exchange 2010
Bulk provisioning Office 365 licenses and services script
Mitel Networks (MITL) to Acquire Polycom (PLCM) in ~$1.96B Deal
Lync 2010 transitioning from mainstream to extended support
Skype for Business Cloud Connector Edition Released
Thomas Poet’s Office Cloud Connector Edition
Cloud Connector Edition Skype for Business Online Planning and Migration Guide
Microsofts Free StatsMan Released for Skype for Business and Lync
Configure OAuth between Skype for Business Server and Exchange Online
Microsoft’s Skype now works without plug-ins with Windows 10’s Edge browser
Skype for Business Hybrid–Additional Office 365 Domain
Announcing content viewing for Skype for Business on Android and updates to iOS
Skype for Business SDN Interface 2.4 Released with PowerShell Provisioning
Skype for Business Client Update Video Webcast: Announce Offline Messaging!
Skype for Business Server 2015, Capacity Calculator
CMS Changes in Skype for Business 2015
Quick Tip: SLA Errors – Just Ignore Them
Technical diagrams for Skype for Business Server 2015
Microsoft to eliminate Skype Managed Accounts feature by March’s end (Regular Skype, not Skype4B)
Displaying Network and Building Information in Call Quality Dashboard (CQD) Online
Lync 2013 Client Update Feb 2016 (KB3114732) 15.0.4797.1000.
Lync Server 2013 CU
Skype for Business Server 2015 CU2 (March)
Pat’s Get-CsUpdateVersion script
.NET Framework 4.6.1 and Skype for Business/Lync Server Compatibility
StatusKey for Skype for Business
Lync 2013 / Skype for Business Call Pickup Group Manager Version 2
UC Birmingham User Group (5/11)
UC Day mailing list for more information about a dedicated UC and cloud conference happening on 24th October in the UK
IPExpoManchester (5/19)

You can download the podcast here or you can subscribe to the podcasts using iTunes, Zune or use the RSS feed.

About
The UC Architects is a community podcast by people with a passion for Unified Communications; our main focus is on Exchange, Skype for Business or related subjects.

Exchange 2016 & Office Online Server

Posted on April 27, 2016 by Michel de Rooij

pptxicon Update (May 9th): Office Online Server is now also available through MSDN here.

Update (May 4th): Office Online Server became available today. OOS is available on VLSC, language packs are on MSDN as well (perhaps a clue OOS will be available later on MSDN as well). Document modification option comes with additional licensing requirements, consult the release article for more information.

On April 26th, I gave a session on Exchange 2016 and Office Online Server – or OOS. Creating the session contents proved to hold some challenges. After agreeing on the session around the January timeframe, when OOS was still in Technical Preview, OOS got pulled a few weeks ago without notice. It was expected it would become Generally Available (GA) shortly after the release of SharePoint 2016, but that didn’t happen. To make matters more interesting, OOS was moved to Volume Licensing Service Center only, where its predecessor was freely available on the Microsoft download center. Currently, the status of OOS is that it is GA, and available on the VLSC site. The session and demo were based on the Technical Preview.

Back to the event, which was hosted by the always friendly and hospitable people from the Belgian E-Communications Community. At the office of Microsoft in Zaventem, Belgium, sessions were presented by 8 Microsoft MVP’s, Microsoft and sponsors, divided in 2 tracks: one Exchange-oriented track, and one track with Skype for Business related topics. Around a total of 60 people turned up in person for the event, and sessions were also streamed live through Skype Meeting Broadcast. Excellent usage of available technology.

(picture by Michael van Horenbeeck)

After the opening keynote, Tony Redmond kicked off talking about Office 365 Groups, followed by fellow countryman Dave Stork talking about using Tools to deploy and manage Exchange. After the break, it was time for my session on Exchange 2016 and Office Online Server. Unfortunately, in the category 1st world problems, lack of an HDMI connector – required for presenting as well as streaming – on my laptop prevented me from doing the demo, and the remaining time was filled by a improvised Ask the Experts session on Exchange and Office 365, in which I was joined by the other Dutch MVP’s present. After that, Michael van Horenbeeck talked in his session about Advanced Identity & Authentication scenarios for Office 365. Jaap Wesselius closed the Exchange track with a session on the Do’s and Don’ts when using Exchange 2010 for Hybrid deployments.

The links above lead to the session recordings; a complete session overview including links to the recordings for the Skype for Business related sessions can be found here. My slidedeck – with caps of the demo – can be downloaded here. A page with links to all the slidedecks and recordings can be found here.

iOS 9.3 fixes Multiple Response issue

Posted on March 22, 2016 by Michel de Rooij

iPhone 6 iOS Update 5/31/16: The glitch has been addressed in iOS 9.3.1.

Note: Be advised that iOS 9.3 contains a glitch which might prevent users from opening links from applications like Safari or other browsers, Mail or Outlook. The glitch causes the link not to work or the app to hang. Apple is aware of the issue and a fix is in the works. It is reported that, as a temporary workaround, disabling Javascript support in Settings > Safari > Advanced makes links work again in Safari.

Apple released iOS 9.3 today, which contains lots of enhancements and fixes. One of these fixes solves an issue with the Calendar app (for those still not using the Outlook app), where it would send multiple responses for an invite.

The release notes of iOS 9.3 mention:

Resolves an issue for some Exchange users that caused Calendar to send multiple responses to the same invitation

The fix supposedly solves issue 1.15 from the “Current issues with Exchange ActiveSync and 3rd-party device” overview (KB2563324), “Meeting organizer receives multiple responses from attendee. The related KB article, KB3108212, also contains instructions on how to identify users experiencing this problem. Note that the problem has also been addressed server-side in Cumulative Update 1 for Exchange 2016.

It’s almost a law that, for every bug that is fixed, new ones are introduced. So, some organizations may therefor want to test and accept this iOS update before giving it the green light for their Exchange environment. To block a specific version of iOS from Exchange, consult the instructions here.

Exchange Updates – March 2016

Posted on March 15, 2016 by Michel de Rooij

Today, the Exchange Team released one big wave of Exchange updates for Exchange 2016 down to Exchange 2007.

Changes in contained in these updates:

Exchange 2016 CU1 is an uncompressed ISO file. If bandwidth is scarce where you will be deploying, be sure to download this 6GB file upfront.
Mailbox Anchoring, introduced with the previous CU for Exchange 2013 and Exchange 2016, is reverted.
Exchange 2010 supports stand-alone Exchange 2010 Hybrid wizard.
All updates will introduce updated OWA/Ootw S/MIME control.

For a list of fixes in these updates, see below.

Exchange 2016 Cumulative Update 1	15.1.396.30	KB3134844	Download	UML
Exchange 2013 Cumulative Update 12	15.0.178.4	KB3108023	Download	UML
Exchange 2010 Service Pack 3 Rollup 13	14.3.294.0	KB3141339	Download
Exchange 2007 Service Pack 3 Rollup 19	8.3.459.0	KB3141352	Download

Exchange 2016 CU1 fixes:

KB 3139730 Edge Transport service crashes when you view the properties of a poison message in Exchange Server 2016
KB 3135689 A custom SAP ODI URI is removed by ActiveSync from an email message in an Exchange Server environment
KB 3135688 Preserves the web.config file for Outlook Web App when you apply a cumulative update in Exchange Server 2016
KB 3135601 Cyrillic characters are displayed as question marks when you run the “Export-PublicFolderStatistics.ps1” script in an Exchange Server 2016 environment
KB 3124242 Mailbox quota is not validated during migration to Exchange Server 2013 or Exchange Server 2016

Exchange 2013 CU12 fixes:

KB 3143710 “Failed Search or Export” error occurs when an eDiscovery search in the Exchange Admin Center finishes
KB 3138644 Messages are stuck in the Submission queue until NDRs are returned or the server is restarted
KB 3137585 OAuth authentication fails in a proxy scenario between Exchange Server 2013 hybrid on-premises and Office 365
KB 3137581 An eDiscovery search of all mailboxes or some Distribution Groups fails when you use the Exchange Administration Center
KB 3137390 “DeviceId cannot contain hyphens” warning occurs when you use the Exchange Management Shell or the Exchange Administration Center to remove the associations in Exchange Server
KB 3137384 Error occurs when you remove an ActiveSync device in the Exchange Management Shell or from the Exchange Administration Center
KB 3137383 CafeLocalProbe fails if the Health Mailbox UPN doesn’t match its Active Directory domain name
KB 3137380 Both read receipts and Non-read receipts are generated when an email is read through IMAP or POP in Exchange Server 2013
KB 3137377 MSExchange FrontEnd Transport service crashes when email messages are processed that contain a null “X-OriginatorOrg” message header
KB 3136694 Calendar items are not synced correctly when you use Exchange ActiveSync on a mobile device
KB 3136404 Searching by Furigana in Outlook’s address book is unsuccessful in an Exchange Server 2013 environment
KB 3135689 A custom SAP ODI URI is removed by ActiveSync from an email message in an Exchange Server environment
KB 3135334 Cannot set Title in Exchange Admin Center (ECP) if it contains more than 64 characters
KB 3135269 Event ID 4999 with MSExchangerepl.exe and MSExchangeDagMgmt.exe crash in Exchange Server 2013 environment
KB 3135018 Cannot remove devices when the DeviceType property includes a forward slash
KB 3134952 EdgeTransport.exe crashes when you view details of messages in the poison message queue
KB 3134918 An IRM-protected message sent to an external contact isn’t returned in a search or discovery results when journaling is implemented in an Exchange Server 2013 environment
KB 3134894 The “Search-Mailbox” cmdlet together with the “Attachment” property keyword lists all items that contain the query string of “attachment”
KB 3128706 HttpProxy overloads a downlevel Client Access Server in an Exchange Server 2013 co-existence environment
KB 3124248 Managed Availability responders fail because of invalid WindowsService names in an Exchange Server 2013 environment
KB 3124242 Mailbox quota is not validated during migration to Exchange Server 2013 or Exchange Server 2016
KB 3124064 Event ID 1009 is logged and no Health Manager alerts on failed content indexes during migration in Exchange Server 2013
KB 3118902 Resource Booking Assistant doesn’t update the subject of a recurring meeting in Exchange Server 2013
KB 3109539 Exchange Management Shell doesn’t return the correct number of Exchange Server 2013 Enterprise CALs license
KB 3108415 Logon for POP3 client disconnects randomly in an Exchange Server 2013 environment
KB 3106236 The “Export-PublicFolderStatistics.ps1” cmdlet exports Russian (Cyrillic) characters as question marks
KB 3098561 “Error executing child request for /owa/auth/errorFE.aspx” when you browse to /ECP in Exchange Server 2013

Notes:

Exchange 2016 CU1 includes schema changes, and Exchange 2013 CU12 may introduce RBAC changes in your environment. When applicable, make sure you run PrepareSchema /PrepareAD before deploying. To verify this step has been performed, consult the Exchange schema overview.
If you have deployed KB3097966 on your Exchange server running on Windows Server 2012 R2, you may want to manually recompile the .NET assemblies before upgrading Exchange to significantly speed up the process. To accomplish this, run the following on every Exchange server on Windows Server 2012 R2:
“%windir%\Microsoft.NET\Framework64\v4.0.30319\ngen.exe update”
Don’t get upset by the messy output and any error messages; if the result of this command shown in the output is ‘0’ you’re good to go.
Be advised .NET Framework 4.6.1 is still not supported; make sure you don’t install this .NET update on your Exchange servers.
The Windows Management Framework (WMF)/ PowerShell version 5 is not supported. Don’t install this on your Exchange servers.
When using Exchange hybrid deployments or Exchange Online Archiving (EOA), you are required to stay current.
If you want to speed up the update process for systems without internet access, you can follow the procedure described here to disable publisher’s certificate revocation checking.
Cumulative Updates can be installed directly, i.e. no need to install RTM prior to installing Cumulative Updates.
Once installed, you can’t uninstall a Cumulative Update nor any of the installed Exchange server roles.
The order of upgrading servers with Cumulative Updates is irrelevant.
Rollups are cumulative per service pack level, meaning you can apply the latest Rollup for Service Pack X to a Service Pack X installation.

Finally, as always for any Hotfix, Rollup, Service Pack or Cumulative Update, I’d recommend to thoroughly test this in a test and acceptance environment first, prior to implementing it in production. When you lack such facilities, hold out a week or two and monitor the comments on the original article or TechNet forum for any issues.

The UC Architects Podcast Ep56

Posted on February 16, 2016 by Michel de Rooij

iTunes-Podcast-logo[1] Episode 56 of The UC Architects podcast is now available. This episode is hosted by Pat Richard, who is joined by John Cook and Tom Arbuthnot. Editing was done by Andrew Price.

Some of the topics discussed in this episode are:

Exchange Unified Messaging Voicemails not being received in mailbox
VMWare vSphere Exchange 2016 Best Practices Guide
Cloud PBX / E5 Dec Launch
Wildcard certs and Lync/SfB
Nexthop is back
RT100 dead
Developing for Skype for Business in 30 days
Group Call Pickup can be configured via PowerShell instead of SEFAUtil
Add Skype Consumer or Skype for Business Server Audio Test Service Bot to a Cloud PBX User
Exchange UM Toll Fraud Risk, Don’t Weaken Your PIN Settings
Understanding Skype for Business Server and Online PSTN Conference ID Configuration
HDX RealTime Optimization Pack 2.0 for Skype for Business on Citrix XenApp and
XenDesktop VDI
UCBug 10 Feb
Microsoft UC User Group London 3rd March Polycom EEC London
UCExpo London, 19th – 20th April
Cloud PBX
Unified Communications Day 2016 – October 24th

You can download the podcast here or you can subscribe to the podcasts using iTunes, Zune or use the RSS feed.

About
The UC Architects is a community podcast by people with a passion for Unified Communications; our main focus is on Exchange, Skype for Business or related subjects.

HTTP Proxy TargetBackEnd limits

Posted on December 22, 2015 by Michel de Rooij

powershell Last Update: February 4th, 2016

When deploying Exchange 2013 or Exchange 2016 in co-existence with a legacy version of Exchange, there comes a point where all traffic is routed through Exchange 2013/2016. Traffic for mailboxes hosted on legacy Exchange versions will be proxied by Exchange 2013/2016 to the back end.

This proxy process has some built-in limits for certain protocols, which you could encounter. Symptoms of these limits are Event 2022’s being logged in the Application log by the MSExchange Front End HTTP Proxy service:

Per Exchange 2013 CU7, this message should be considered a notice, despite the confusing event description. No connections are being blocked. However, the events create noise in your logs, which can be prevented by raising these limits. To accomplish this, you need to dive in to the web.config of the applicable HTTP Proxy protocols:

$ExInstall\FrontEnd\HttpProxy\sync\web.config (for ActiveSync, EAS)
$ExInstall\FrontEnd\HttpProxy\rpc\web.config (for OA, RPC/http)

In those files, create or adjust the entry in the <appsettings> configuration node, where <value> is the limit you want to configure (default is 150):

<add key=”HttpProxy.ConcurrencyGuards.TargetBackendLimit” value=”<value>” />

After adjusting these values, recycle the relevant application pools, e.g. MSExchangeSyncAppPool and MSExchangeRPCProxyAppPool.

The above steps need to be performed on all Exchange 2013/2016 Client Access Servers.

To automate this process of tedious editing in web.config files, I have created a small script which lets you alter these values for EAS and RPC against the local server or remotely. The script, Configure-HTTPProxyTargetBackEnd.ps1, has the following parameters:

Server to specify server to configure. When omitted, will configure local server.
AllServers to process all discoverable Exchange Client Access servers
TargetBackEnd specifies Target Backend limit (default 150).
NoRecycle to prevent recycling the MSExchangeSyncAppPool and MSExchangeRPCProxyAppPool

For example, to configure the local server with a limit of 2000 for Exchange Active-Sync and RPC access, use:

.\Configure-HTTPProxyTargetBackEnd.ps1 -TargetBackEnd 2000

Note that the script will create a backup copy of the web.config files before editing, using the current timestamp.

Download
You can download the script from the TechNet Gallery here.

Feedback
Feedback is welcomed through the comments. If you got scripting suggestions or questions, do not hesitate using the contact form.

Revision
See TechNet Gallery page.

Outlook for iOS adds Contacts support

Posted on December 17, 2015 by Michel de Rooij

A short notice on an update received today for Outlook for iOS 2.09. This update adds the much requested feature of integrating Outlook for iOS with the (native) Contacts in iOS:

“Your Office 365 and Exchange Contacts can now be saved to the iOS Contacts app. This will allow you to easily see the name of a contact when you receive a call or text message from them. Head to your Advanced Settings to turn on this feature.”

This does away with the requirement of resorting to setups like having the iOS Mail app sync with your Office 365 or Exchange On-Premises account, just to sync those contacts with your device. To disable syncing contacts through the Mail app, go to Settings > Mail, Contacts, Calendars and click the account you wish to disable syncing contacts for. Then, disable syncing its Contacts by toggling its switch:

You will get a warning contacts synced through this contact will be removed from Contacts, but since we are going to use Outlook for this, you can proceed.

Next, open up the updated new Outlook app, and go to Settings. Click the account from which you want to sync contacts to your device, and select Advanced Settings. In there, you will find a new switch, Save Contacts to Device. Behind it is the number of contacts available on this account:

Toggle the switch to start syncing contacts directly from your Office 365 or Exchange On-Premises account to Contacts, giving the Outlook app permissions to access your Contacts when requested. After this, you’re ready to go.

Note that all synced contacts will contain a line in the Notes field, stating:

Exported from Microsoft Outlook (Do not delete) [outlook:..:..]

This is to indicate this is a synced contact, and you must not edit or remove it using the device, rather remove it from the originating source as it might get recreated or overwritten during synchronization.

Finally, the sync is one-way, so although you can edit properties on your phone through the Contacts app, they won’t be synced back to the originating source. Also, when editing properties through Contacts, those edits are not propagated to the People view in the Outlook app, as those are the contacts from your Office 365 / Exchange On-Premises accounts. This can be confusing, but having to set up an e-mail account just once with a one-way sync seems more efficient and less confusing to me than having to configure the Mail app only to get your contacts on your phone.

Exchange 2013 Cumulative Update 11

Posted on December 15, 2015 by Michel de Rooij

The Exchange Team released Cumulative Update 11 for Exchange Server 2013 (KB3099522). This update raises Exchange 2013 version number to 15.0.1156.6.

Apart from a Daylight Savings Time update, documented here, this Cumulative Update contains the following fixes:

KB 3120594 Appointment on the Outlook calendar isn’t updated to a meeting when attendees are added
KB 3108345 “The app couldn’t be downloaded” error occurs when you try to install an application from the Intranet in Exchange Server 2013
KB 3108011 Error message occurs in Outlook after you change a single instance of a recurring meeting by using an iOS device
KB 3107781 Exchange ActiveSync device doesn’t keep messages for 30 days as configured
KB 3107379 Noderunner.exe consumes excessive CPU resources by parsing an attached document in Exchange Server 2013
KB 3107337 Mailbox migration from Exchange Server 2007 to Exchange Server 2013 is very slow
KB 3107291 Exception occurs when you run the Invoke-MonitoringProbe cmdlets to set probes for IMAP and POP3 in Exchange Server 2013
KB 3107205 “Custom error module does not recognize this error” error when OWA web parts fail to load
KB 3107174 Pages that use the People pop-up URL don’t load in Chrome when you access OWA or the Exchange Server Administration Center
KB 3106613 Outlook Web App shows partial contacts in an Exchange Server 2013 environment
KB 3106475 POP3 and IMAP4 are not supported to use TLS protocol 1.1 or 1.2 in Exchange Server 2013
KB 3106421 Very long URLs in an email message do not open in OWA in Internet Explorer
KB 3105760 Exchange Server 2016 mailbox server can be added to an Exchange Server 2013 DAG
KB 3105690 Outlook clients that use MAPI over HTTP to connect to Microsoft Exchange Server 2013 mailboxes are intermittently disconnected
KB 3105685 The lsass.exe process leaks an amount of handles in Exchange Server 2013
KB 3105654 Cannot edit Inbox rules in Outlook Web App by using Chrome
KB 3105625 ActiveSync device downloads emails while it’s in quarantine in an Exchange Server 2013 environment
KB 3105389 WSMan-InvalidShellID error when you create remote PowerShell sessions in an Exchange Server 2013 environment
KB 3100519 No responses are sent from a room mailbox when a booked meeting extends beyond the date you set in Exchange Server 2013
KB 3093866 The number of search results can’t be more than 250 when you search email messages in Exchange Server 2013
KB 3088911 Inline attachments are sent as traditional when you smart forward an HTML email in an iOS device in Exchange Server 2013
KB 3088487 IOPS Write increase causes email delivery delays in an Exchange Server 2013 environment
KB 3076376 IMAP clients that use Kerberos authentication protocol are continually prompted for credentials in Exchange Server 2013
KB 3068470 “Something went wrong” error in Outlook Web App and ECP in Exchange Server 2013
KB 3048372 Exchange Calendar items are shifted incorrectly when some Windows DST updates are applied
KB 2968265 OWA cannot be accessed after you upgrade Exchange Server 2013

Notes:

This CU introduces an important change in the mechanism how Exchange Management Shell sessions will be initiated as of Exchange 2013 CU11 (and to be introduced in Exchange 2016, as well), called Mailbox Anchoring. More on this later in this article.
When using Exchange hybrid deployments or Exchange Online Archiving (EOA), you are required to stay current (version N) or be one version behind (N-1).
Cumulative Update may include schema or Active Directory changes (e.g. Role-Based Access Control). Make sure you run PrepareSchema /PrepareAD. If you want to speed up the Cumulative Update installation process, you can temporarily disable certificate revocation checking as described here.

Note that Cumulative Updates can be installed directly, i.e. no need to install RTM prior to installing Cumulative Updates. Note that once installed, you can’t uninstall a Cumulative Update nor any of the installed Exchange server roles. The order of upgrading servers is irrelevant, unlike with previous generations of Exchange.

Finally, and I can’t emphasize this enough: For any Hotfix, Rollup, Service Pack or Cumulative Update, I’d recommend to thoroughly test this in a test and acceptance environment first, prior to implementing it in production. When you lack such facilities, hold out a week or two and monitor the comments on the release article or TechNet forum for any issues.

You can download Exchange 2013 Cumulative Update 11 here; UM Language Packs can be found here.

MAILBOX ANCHORING
This CU introduces an important change in the administrative model. In short, you need to home your administrative mailbox on the Exchange platform level you want to administer Exchange from (mailbox anchoring), as you will connect (or be proxied) to an Exchange Management Shell (EMS) session on that host. In other words, use an administrative account with a mailbox on Exchange 2013 to administer Exchange 2013, use an admin mailbox on Exchange 2016 for Exchange 2016. The logic behind this is to work around mixed-version environment issues, as newer Exchange versions may introduce changes, like new or enhanced cmdlets but also deprecated functionality. New general recommendation is to keep arbitration mailboxes as well as administrative mailboxes on the most current version.

If the admin has no mailbox, or if it’s unavailable, arbitration mailboxes – primarily SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c} – are considered for hosting your EMS session. Also, that ‘Connected to <Server>’ message when you open up an EMS session will no longer always mean your EMS session is hosted on that server; it could mean your EMS session is being proxied through there, which can create challenges when you’re running multiple sites with low bandwidth links – you may need to move your admin mailbox around or create one for local administration to enjoy better response times. You can only discover which host your session runs on by inspecting the local environment, using elements like the env:COMPUTERNAME variable or [System.Net.Dns]::GetHostName().

Also, it might be wise to spread administrative mailboxes over different servers or databases, in case your arbitration mailboxes become unavailable together with that one administrative mailbox, as you need to recover one of those just so you can set up an EMS session. The last resort for running an EMS cmdlets – against all best practices and recommendations, as it bypasses Role-Based Access Control for example – is to load the Exchange module using Add-PSSnapIn. But be advised, you may not have all required permissions, for example your admin account may not have direct Active Directory permissions (and which is one of the reasons you shouldn’t just load the snap-in under normal circumstances).

The Exchange Team put up a separate blog to explain this change in behavior here.

Exchange 2010 SP3 RU12 & Exchange 2007 SP3 RU18

Posted on December 15, 2015 by Michel de Rooij

Exchange 2010 Logo The Exchange Team released Rollup 12 for Exchange Server 2010 Service Pack 3 (KB3096066) as well as Rollup 18 for Exchange Server 2007 Service Pack 3 (KB3078672). These update raise version numbers to 14.3.279.2 and 8.3.445.0 respectively.

Apart from a Daylight Savings Time update, documented here, these Rollups contain the following fixes:

Exchange 2010 SP3 Rollup 12:

KB 3048372 Exchange Calendar items are shifted incorrectly when some Windows DST updates are applied
KB 3096125 CryptographicException error when Edge Transport service crashes in an Exchange Server 2010 environment
KB 3097219 Organizer’s name isn’t displayed in the subject of the recurring meeting requests in Exchange Server 2010
KB 3106421 Very long URLs in an email message don’t open in OWA in Internet Explorer
KB 3115809 Mailboxes can be accessed when the DefaultNetworkCredentials option is selected when you use Exchange Web Services Managed API to connect to Exchange Server

Exchange Server 2007 SP3 Rollup 18:

KB 3106421 Very long URLs in an email message don’t open in OWA in Internet Explorer

Notes:

If you want to speed up the update process for systems without internet access, follow the procedure described here to disable publisher’s certificate revocation checking.
If you got an Exchange 2010 DAG, and want to properly update the DAG members, check the instructions here.
As for any Hotfix, Rollup, Service Pack or Cumulative Update, apply this update to a acceptance environment first, prior to implementing it in production. When you lack such facilities, hold out a certain period and monitor the comments on the release article or TechNet forum for any issues.

Rollups are cumulative per service pack level, i.e. they contain fixes released in earlier update Rollups for the same product level (RTM, SP). This means you can apply the latest Rollup after installing a fresh installation of RTM or SPx version, for that product level.

You can download Exchange 2010 SP3 Rollup 12 here and Exchange 2007 SP3 Rollup 18 here.

Exchange Server Role Requirements Calculator 7.8

Posted on October 15, 2015 by Michel de Rooij

The Exchange team today published an update for the Exchange 2013 Server Role Requirements Calculator as well. The new version number is 7.8. This version incorporates sizing for Exchange 2016 as well and includes support for ReFS (default for Exchange 2016). The version number is also dropped from the calculator.

More or less complementary to the calculator is the updated sizing guidance for Exchange 2016, which was also published today here. No big changes here, apart from multi-role only option and a slight increase in CPU requirements to cover for unforeseen circumstances as the team is still learning from real-world behavior. This makes sense, looking at the speed in which the calculator was released compared to the one for Exchange 2013. Kudos to the Exchange team!

New and enhanced functionality since version 7.6:

Added support for Exchange 2016
Included CPU utilization guidance changes for Exchange 2016
Diskpart.ps1 and CreateDAG.ps1 now support ReFS
Moved DataMoveReplicationConstraint setting from CreateMBDatabases.ps1 to CreateMBDatabaseCopies.ps1
Revised all of the Distribution dialog controls to load their defaults from variables rather than use hard-coded values
The DAG name from the Input tab now flows through as the default on the Export DAG dialog
Updated Distribution tab dialog controls to persist the global catalog value during a session
Added conditional formatting for ReplayLagTime and SafetyNetThreshold
Removed 2013 from the name of the calculator

Fixes since version 7.6:

Fixed inaccuracies with “Number of Exchange Data Volumes per Server” input
Fixed calcActDBPDCWorst formula to take into account non-HA deployments
Fixed multiple dbs / volume calculation to take into account ReplayLagManager
Fixed calcNumDBCopyInSDC formula to take into account proper number of lagged copies
Fixed MaxPreferredActive not being displayed for A/A (Single DAG) site resilient solutions
Fixed an issue with Fail* buttons on Distribution tab when using some regional settings
Fixed an issue with volume path persistence on the Distribution tab Mount Points dialog

You can download the calculator here. For more information, please consult the list of changes here or Read Me here.