Update Rollup 3 for Exchange Server 2010 Service Pack 3 (SP3) resolves issues that were found in Exchange Server 2010 SP3 since the software was released. This update rollup is highly recommended for all Exchange Server 2010 SP3 customers.

Issues that the update rollup resolves

Update Rollup 3 for Exchange Server 2010 SP3 contains the fix for the security issue that is described in Security Bulletin MS13-061and resolves the issues that are described in the following Microsoft Knowledge Base (KB) articles:

• 2715761 "550 5.6.0" NDR when you send a yearly recurring meeting request in an Exchange Server 2010 environment
• 2839533 RPC Client Access service freezes in an Exchange Server 2010 environment
• 2840454 "The rules on this computer do not match the rules on Microsoft Exchange" error when you manage rules by using Outlook 2013 in an Exchange Server 2010 environment
• 2866064 Can't load OWA Premium by using Internet Explorer 11 in an Exchange Server environment
• 2874070 Public folders are exposed although the user does not have rights to see the parent folders in an Exchange Server 2010 SP3 environment
• 2878175 Client Access server crashes when you use Outlook with a Riverbed WAN optimizer in an Exchange Server 2010 environment
• 2879320 Retention action setting is not updated in FAI items by running the Set-RetentionPolicyTag cmdlet in an Exchange Server 2010 environment
• 2879736 Office 365 users cannot retrieve an on-premises user’s free/busy data in an Exchange Server 2010-based hybrid deployment
• 2880153 RPC Client Access Service crashes if Outlook is in online mode in an Exchange Server 2010 environment
• 2880290 RPC Client Access service crashes when you use Outlook in ANSI online mode in an Exchange Server 2010 environment
• 2882467 RPC Client Access service stops if Outlook is in online mode in an Exchange Server 2010 environment
• 2882677 BlackBerry device is not redirected in an Exchange Server 2010 environment
• 2886469 EAS client receives status code 8 during synchronization in an on-premises Exchange Server 2010 environment
• 2886567 Objects added to a BindingSource's list must all be of the same type" error message when you add an additional domain name in Exchange Server 2010 SP3
• 2887574 RPC Client Access service freezes when your mailbox reaches the quota limit in an Exchange Server 2010 environment
• 2888406 Mailbox Replication service crashes when you try to move mailboxes in an Exchange Server 2010 environment
• 2888906 Events 1000, 4999, and 9775 are logged when Store.exe crashes on an Exchange Server 2010 SP3 Mailbox server
• 2888911 W3wp.exe crashes when you decline a meeting request by using Outlook Web App or an EWS application in an Exchange Server 2010 environment
• 2890650 Items in the Drafts folder are not stamped with the retention policy tag in an Exchange Server 2010 or 2013 environment
• 2891194 Exchange ActiveSync devices are marked as "Blocked" in EMS and EMC when the devices are synchronizing with the Exchange Server 2010 server
• 2892337 Outlook client freezes when you try to sort email folders by columns in an Exchange Server 2010 environment
• 2893437 Delegate can read your AD RMS protected messages by using Outlook Web App in an Exchange Server 2010 environment
• 2896304 Background image is displayed incorrectly in an email message when a disclaimer rule is enabled in an Exchange Server 2010 environment
• 2899146 You cannot drag email messages to other folders by using Outlook Web App in an Exchange Server 2010 environment

 

Download Update Rollup 3 For Exchange 2010 SP3 (KB2891587)

Version: 14.3.169.01
Date Published: 11/25/2013
File name: Exchange2010-KB2891587-x64-en.msp
File size: 30.9 MB
KB Articles: KB2891587

For list of Exchange 2010 list of Update Rollup and build numbers visit Wiki Page

Now that iOS 7.0.2 available, it might be good idea to block previous iOS 7.0 version, you probably see many news right after iOS7 release about bugs that allowed access to locked iPhone/iPAD. Now when Apple fixes this two iOS 7 bug, you might be interested to know how to block version iOS 7.0 devices from accessing you corporate email.

In fact that you cannot block specific Device OS via the Exchange Control Panel or the Exchange Admin Center as this management tools can only select already present models we will use PowerShell, please also note that this method only works when devices already have an relationship with Exchange.

Let find out what Devices OS are currently are registered on our Exchange, for Exchange 2013 and Office 365 Exchange Online you'll have to use this powershell (About how to connect to Office 365 you can read here)

Get-MobileDevice| ft FriendlyName, DeviceOS, DeviceModel -A 

We can see few DeviceOS, but we need only iOS 7.0 so lets filter output

Get-MobileDevice | Where-Object {$_.DeviceOS -like "iOS 7*"} | ft FriendlyName, DeviceOS, DeviceModel –A

Note: Please note that there are possibly more versions, iOS 7.0 11A465, iOS 7.0 11A4449d, iOS 7.0 11A4400f, iOS 7.0 11A4414e, etc.

Note: The cmdlet Get-MobileDevice is specific for Exchange 2013/Office 365, for Exchange 2010 use the cmdlet Get-ActivesyncDevice

Now when we get DeviceOS we can block or quarantine this devices using the cmdlet New-ActiveSyncDeviceAccessRule (works on Exchange 2010, 2013, Office365). This will also work when these particular DeviceOS aren't present already.

In the example below we quarantine a specific iOS 7 DeviceOS:

New-ActiveSyncDeviceAccessRule -QueryString “iOS 7.0 11A465″ -Characteristic DeviceOS -AccessLevel Quarantine

Immediately after ActiveSync Device Access Rule is created users will not be able to sync iPAD/iPhone running on iOS 7.0, they will get an email about mobile device was quarantined.

Only after users update their devices to latest version of iOS 7.0.2 (currently available for download) they will be able to sync again, after update you can see the updated DeviceOS in the list

Get-MobileDevice | Where-Object {$_.DeviceOS -like "iOS 7*"} | ft FriendlyName, DeviceOS, DeviceModel –A

That it for now, keep safe, block and quarantine, do not anyone unpatched to use you corporate data ;)

----

Some additional links to read

Forbes: iOS 7 Bug Lets Anyone Bypass iPhone's Lockscreen To Hijack Photos, Email, Or Twitter
Forbes: Another iOS 7 Bug Lets Anyone Make Calls From Locked iPhones--And This One Has No Quick Fix
Apple: About the security content of iOS 7.0.2

New SSL tools from DigiCert about old one see this post

The DigiCert Certificate Utility for Windows is an invaluable tool for anyone that manages SSL and Code Signing Certificates. As a Certificate Authority and leader in digital certificate support, DigiCert created this tool to specifically target our customer's pain points.

The DigiCert Certificate Utility lets you:

• Create a private key and CSR, send the CSR to DigiCert, issue the certificate, and install the issued certificate in just one click
• Generate and upload a CSR before a certificate is validated
• Install certificates that already have CSRs in one click
• Track the status of pending orders and view the associated SANs for each certificate
• See all of the SSL Certificates installed on your server
• View details for each certificate
• Copy SSL Certificates between servers
• Renew SSL Certificates
• Fix intermediate certificate problems
• Edit your certificate's friendly name
• Show the SSL Certificate chain that a server is sending to clients (great for internal networks)
• Install a certificate to a pending request
• Test a certificate's private key and revocation status
• Delete old certificates and stay organized
• Sign or re-sign multiple pieces of code in just one step
• Sign code with the click of a button
• Automatically check to make sure the correct certificate is being used for kernel-mode signing
• Prevent broken certificate chains
• Verify signed code
• Check for errors during the code signing process
• Look at time stamp information
• Repair a certificate that is not associated correctly to a private key
• Run the code signing portion of the utility through a command prompt

Download DigiCert Certificate Utility for Windows

Unified Messaging (UM) language packs allow an Exchange Server 2010 Service Pack 3 (SP3) UM server to speak additional languages to callers and recognize other languages when callers use ASR or when voice messages are transcribed. UM language packs contain:

• Pre-recorded prompts, for example "After the tone, please record your message. When you’ve finished recording, hang up, or press the # key for more options." in the language of the UM language pack.
• Grammar files that are used by a UM server to lookup the names of given users in the directory in the language of the UM language pack.
• Text to Speech (TTS) translation so that content (e-mail, calendar, contact information, etc.) can be read to callers in the language of the UM language pack.
• Support for Automatic Speech Recognition (ASR), which allows callers to interact with UM using the voice user interface (VUI) in the language of the UM language pack.
• Support for Voice Mail Preview which allows users to read the transcript of voice mail messages in a specific language from within a supported e-mail client such as Outlook or Outlook Web Access.
  

UMLanguagePack.ca-ES.exe 127.6 MB
UMLanguagePack.da-DK.exe 107.7 MB
UMLanguagePack.de-DE.exe 128.3 MB
UMLanguagePack.en-AU.exe 99.0 MB
UMLanguagePack.en-CA.exe 206.0 MB
UMLanguagePack.en-GB.exe 98.2 MB
UMLanguagePack.en-IN.exe 102.3 MB
UMLanguagePack.en-US.exe 244.0 MB
UMLanguagePack.es-ES.exe 168.5 MB
UMLanguagePack.es-MX.exe 125.7 MB
UMLanguagePack.fi-FI.exe 112.7 MB
UMLanguagePack.fr-CA.exe 111.5 MB
UMLanguagePack.fr-FR.exe 176.9 MB
UMLanguagePack.it-IT.exe 176.8 MB
UMLanguagePack.ja-JP.exe 102.3 MB
UMLanguagePack.ko-KR.exe 105.9 MB
UMLanguagePack.nb-NO.exe 101.0 MB
UMLanguagePack.nl-NL.exe 106.6 MB
UMLanguagePack.pl-PL.exe 156.9 MB
UMLanguagePack.pt-BR.exe 116.9 MB
UMLanguagePack.pt-PT.exe 191.7 MB
UMLanguagePack.ru-RU.exe 112.4 MB
UMLanguagePack.sv-SE.exe 89.6 MB
UMLanguagePack.zh-CN.exe 121.6 MB
UMLanguagePack.zh-HK.exe 110.4 MB
UMLanguagePack.zh-TW.exe 116.5 MB

Download the file and use Exchange Server 2010 SP3 setup to install the UM language pack.

Example: Setup.com /AddUmLanguagePack:UmLanguagePackName /s: d:\MyLocalFolder

Install each language pack on each UM server and set it to the default language on all of the dial plans that the UM server is associated with when you want to make that language available to users.

Download Exchange Server 2010 SP3 UM Language Packs

Version: 14.03.0123.004
Date published: 2/14/2013

Microsoft Exchange Server 2010 SP3 helps IT Professionals achieve new levels of reliability with greater flexibility, enhanced user experiences, and increased protection for business communications.

• Flexible and reliable - Exchange Server 2010 SP3 gives you the flexibility to tailor your deployment based on your company's unique needs and a simplified way to keep e-mail continuously available for your users.
• Anywhere access - Exchange Server 2010 SP3 helps your users get more done by giving them the freedom to securely access all their communications - e-mail, voice mail, instant messaging, and more - from virtually any platform, Web browser, or device.
• Protection and compliance - Exchange Server 2010 SP3 delivers integrated information loss prevention, and compliance tools aimed at helping you simplify the process of protecting your company's communications and meeting regulatory requirements.

Microsoft has released Microsoft Exchange Server 2010 Service Pack 3 (SP3) includes the following new features and capabilities:

• Coexistence with Exchange 2013: You can now install Exchange Server 2013 in your existing Exchange Server 2010 organization. To do this, install Exchange Server 2013 Cumulative Update 1 (CU1). You cannot install Exchange Server 2013 in your existing Exchange Server 2010 organization by using Exchange Server 2013 RTM installation media. Note Exchange Server 2013 CU1 is also an installation medium for Exchange Server 2013.
     
• Support for Windows Server 2012: You can now install and deploy Exchange Server 2010 on computers that are running Windows Server 2012.
     
• Support for Internet Explorer 10: You can now use Internet Explorer 10 to connect to Exchange 2010.
     
• Customer Requested Fixes: Exchange Server 2010 SP3 contains all the fixes that are contained in update rollups that were released before SP3. For more information about the release schedules of Exchange 2010 updates, see Exchange 2010 Servicing.

In addition to the customer reported issues that are resolved in previous service packs, this service pack also resolves the issues that are described in the following Microsoft Knowledge Base (KB) articles:

2552121 You cannot synchronize a mailbox by using an Exchange ActiveSync device in an Exchange Server 2010 environment
2729444 Mailboxes are quarantined after you install the Exchange Server 2010 SP2 version of the Exchange Server 2010 Management Pack
2778100 Long delay in receiving email messages by using Outlook in an Exchange Server 2010 environment
2779351 SCOM alert when the Test-PowerShellConnectivity cmdlet is executed in an Exchange Server 2010 organization
2784569 Slow performance when you search a GAL by using an EAS device in an Exchange Server 2010 environment
2796950 Microsoft.Exchange.Monitoring.exe process consumes excessive CPU resources when a SCOM server monitors Exchange Server 2010 Client Access servers
2800133 Application pools consume excessive CPU and memory resources on an Exchange Client Access server after you apply the Update Rollup 5 version 2 for Exchange Server 2010 SP2
2800346 Outlook freezes and high network load occurs when you apply retention policies to a mailbox in a mixed Exchange Server 2010 SP2 environment
2810617 You cannot install Exchange Server 2010 SP3 when you define a Windows PowerShell script execution policy in Group Policy
2787500 Declined meeting request is added back to your calendar after a delegate opens the request by using Outlook 2010
2797529 Email message delivery is delayed on a Blackberry mobile device after you install Update Rollup 4 for Exchange Server 2010 SP2
2800080 ErrorServerBusy response code when you synchronize an EWS-based application to a mailbox in an Exchange Server 2010 environment

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

What's New in Exchange 2010 SP3
Release Notes for Exchange Server 2010 SP3
Download Exchange Server 2010 Service Pack 3 (SP3)

Version: 14.03.0123.004
Date published: 2/12/2013
KB articles: KB2808208
File name: Exchange2010-SP3-x64.exe   
Size: 549.2 MB

More reading about Exchange Server 2010 Service Pack 3 (SP3):

MSExchange Team Blog: Released: Exchange Server 2010 SP3
Tony Redmond's Exchange Unwashed: Exchange 2010 SP3 is released - almost ready for Exchange 2013 deployments

Недавно в рамках одного проекта мы мигрировали System Center c Hyper-V Server 2008 R2 на Hyper-V Server 2012 с System Center 2012 SP1, в данной системе как часть инфраструктуры присутствовал всеми нами любимый Exchange Server 2010 SP2 в Database Availability Group из выделанных виртуальных серверов.

В рамках миграции один из Mailbox серверов был мигрирован на новый хост который уже хостился на новом Hyper-V Server 2012 подключённый по SAN к 3PAR F400, чтоб не ждать несколько часов миграции пассивной копии базы данных мы удалили диск с копиями базы данных и мигрировали только диск с ОС, после миграции был создан новый диск для копии базы данных, после чего репликация начала вываливать ошибки не перестовая…

The log copier was unable to continue processing for database ‘MAILBOX_DB\SERVER’ because an error occurred on the target server: Continuous replication – block mode has been terminated. Error: the log file sector size does not match the current volume’s sector size (-546) [HResult: 0x80131500]. The copier will automatically retry after a short delay.

После небольшого траблшутинга, выяснилось что проблема была в разнице форматах VHD и VHDХ…

Дело в том что новый формат VHDХ в Hyper-V Server 2012 использует 4K сектора в виртуальных дисках, в тоже время как старый 512, отсюда и ошибки в репликации. (Error: the log file sector size does not match the current volume’s sector size)

Просмотреть информацию о диске можно командой fsutil fsinfo ntfsinfo g: где g: это имя диска

Пример диска VHDX, где “Bytes Per Sector” у нас 512 и“Bytes Per Physical Sector” равна 4096 что означает что мы имеем поддержку 4K Sector Disk with 512-byte Emulation

 

В тоже время в Native 4K уже “Bytes Per Sector” и “Bytes Per Physical Sector равны 4096, Данная тема уже выходит за рамки данного поста.

На последок добавлю что по возможности нужно избегать разных форматов VHD в вирутальной среде чтоб избежать вот таких маленьких непредвиденых ошибок.

 

Подробно про 4К диски можно прочитать тут:

Hyper-V Support for Large Sector Disks Overview
http://technet.microsoft.com/en-us/library/hh831459.aspx

Advanced format (4K) disk compatibility update (Windows)
http://msdn.microsoft.com/en-us/library/windows/desktop/hh848035%28v=vs.85%29.aspx

Advanced Format
http://en.wikipedia.org/wiki/Advanced_Format

SQL Server - New Drives Use 4K Sector Size
http://blogs.msdn.com/b/psssql/archive/2011/01/13/sql-server-new-drives-use-4k-sector-size.aspx

Recently, Windows Update began offering the Windows Management Framework 3.0 as an Optional update. This includes all forms of update distribution, such as Microsoft Update, WSUS, System Center Configuration Manager and other mechanisms. The key bit here is that the Windows Management Framework 3.0 includes PowerShell 3.0.

Continue at source…

Вышел Update Rollup 3 для Exchange Server 2010 Service Pack 2
 
Загрузить Update Rollup 3 для Exchange Server 2010 SP2 можно отсюда
 
Update Rollup 3 for Exchange Server 2010 Service Pack 2 (KB2685289)
 
Version: 14.2.309.2
Date published: 5/29/2012
KB articles: KB2685289
 
File name: Exchange2010-KB2685289-x64-en.msp
Size: 33.3 MB
 
Список исправлений вошедших в Update Rollup 3

• 2510607  "Cannot open the free/busy information" error message when you try to view folder permissions in Outlook
• 2514700  Extra.exe does not trace a single user whose legacyExchangeDN attribute contains one or more special characters in an Exchange Server 2010 environment
• 2571342  The Folder contacts list is empty when a user views the properties of a mail-enabled public folder in an Exchange Server 2010 environment
• 2572029  Synchronization of an organizational forms library fails when you use Outlook in Cache mode in an Exchange Server 2010 environment
• 2586828  The EdgeTransport.exe process consumes 100 percent of CPU resources on an Exchange Server 2010 Edge Transport server
• 2589233  Meeting requests bypass the requirement for delegate approval and instead book resource mailboxes automatically in an Exchange Server 2010 environment
• 2633043  "There were no writeable domain controllers found in Active Directory site" error message when you run the ExBPA tool in an Exchange Server 2010 organization
• 2647396  You cannot disable a public folder by using the "Disable-MailPublicFolder" cmdlet in an Exchange Server 2010 environment
• 2648263  You cannot open routing log files on Exchange Server 2010 Hub Transport servers in a mixed Exchange Server 2003 and Exchange Server 2010 environment
• 2667120  MSExchangeAutodiscoverAppPool application pool crashes on an Exchange Server 2010 Client Access server when you try to view the free/busy information about a user in a trusted domain
• 2668900  Event ID 2915 is logged when you apply a fallback policy to a service account in an Exchange Server 2010 environment
• 2670099  You cannot open calendar folders that are shared by hidden users in an Exchange Server 2010 environment
• 2671128  RPC Client Access Cross-Site connectivity issues occur in an Exchange Server 2010 environment
• 2673542  MRM retention policy in the Junk E-Mail folder does not work when you manually move email messages in an Exchange Server 2010 environment
• 2673591  Crash occurs in the Autodiscover application pool in an Exchange Server 2010 environment
• 2674185  MAPI_E_CALL_FAILED errors occur when a MAPI application that uses the MAPI function in Outlook 2007 MAPI or in Outlook 2010 tries to access an Exchange Server 2010 server
• 2674445  You cannot change the access permissions of a Calendar folder in an Exchange Server 2010 environment
• 2677872  You cannot use a distribution group in the hierarchical address book when you create the group in Exchange Server 2003
• 2681250  "550 5.6.0" NDR when a journal report is sent to an external contact in an Exchange Server 2010 environment
• 2682047  You cannot access a mailbox for several hours after you disconnect and then reconnect the mailbox in an Exchange Server 2010 SP2 environment
• 2682408  AddOrganizerToSubject parameter does not take effect when a recurring meeting conflicts with another meeting in an Exchange Server 2010 environment
• 2682895  Error message when a role assignee runs the Get-MailboxExportRequestStatistics cmdlet in an Exchange Server 2010 environment
• 2684583  You cannot delete an empty folder in a .pst file by using Outlook in an Exchange Server 2010 environment
• 2689810  A meeting request that you send from an EWS application is in plain text format instead of HTML format when an attendee opens the request by using Outlook in online mode
• 2695011  Junk Email settings do not work as expected after you migrate or move a mailbox to an Exchange Server 2010 SP1 Mailbox server
• 2695022  The E-mail Signature text box is not editable in Outlook Web App when you use Google Chrome in an Exchange Server 2010 environment
• 2695836  You cannot move a mailbox in an Exchange Server 2010 environment that has a message size limit configured
• 2696642  An additional line of space is added in each paragraph in an email message when you click the Printable View icon in Outlook Web App in an Exchange Server 2010 environment
• 2698927  Resource mailbox that has AutoAccept configured does not process a meeting request that contains custom code or script in Exchange Server 2010
• 2698960  You cannot move some users’ mailboxes from one Exchange Server 2010 mailbox database to another
• 2698976  Managed Folder Assistant does not process a mailbox that has external contacts in another tenant organization in an Exchange Server 2010 environment
• 2699023  Event ID 9646 is logged on the Exchange Server 2010 mailbox server when you access a mailbox that has more than 250 folders by using an IMAP4 client
• 2699577  GAL-related client-only message rule is not applied in Outlook after you apply RU1 for Exchange Server 2010 SP2 in an Exchange Server 2010 environment
• 2699582  Error message when you play a voice mail by using Outlook 2007 in an Exchange Server 2010 environment
• 2700544  Multiple recovery items are added to a subfolder of the Recoverable Items folder in an Exchange Server 2010 environment
• 2705425  UMWorkerProcess.exe consumes large amounts of memory when you try to listen to voice messages by using Outlook Voice Access in an Exchange Server 2010 environment
• 2705555  The Set-Mailbox cmdlet takes a long time to complete configuration in an Exchange Server 2010 environment
• 2705570  An error occurs when a user whose mailbox is hidden from the Exchange address list tries to open the Scheduling Assistant tab by using the light version of Outlook Web App
• 2705647  A user cannot log on to a mailbox that is full by using Outlook Web App in an Exchange Server 2010 environment
• 2705682  Post-reform spelling rules are not used in the Portuguese (Portugal) dictionary in Outlook Web App in an Exchange Server 2010 environment
• 2706523  You cannot create a mailbox or mail-enable a mailbox for a disabled user account in an Exchange Server 2010 environment
• 2708880  You cannot set the "Country/region" attribute of a user mailbox to "Curaçao," "Bonaire, Sint Eustatius and Saba," or "Sint Maarten (Dutch part)" by using the Exchange Management Console on an Exchange Server 2010 server

 

More info about UR3 at MS Exchange team blog

How To Successfully Migrate From Novell GroupWise to Microsoft Exchange

Migrating from Novell GroupWise to Microsoft Exchange Server or Microsoft Office 365 can be a complex and challenging process for any organization. Learn how organizations perform successful migrations from Novell GroupWise to Exchange Server or Office 365 using migration tools from Quest Software and services provided by Dimension Data

Download How To Successfully Migrate From Novell GroupWise to Microsoft Exchange

Version: 1.0
Date published: 4/27/2012
Language: English
File name: HowtoSucessfullyMigratefromNovellGroupWisetoMicrosoftExchangeServerorOffice365.docx
Size: 312 KB

The Microsoft Exchange Server Protocol technical documentation set provides detailed technical specifications for Microsoft protocols and extensions to industry-standards or other published protocols that are implemented and used in Microsoft Exchange Server.
The documentation is designed to describe each protocol in detail as it is used by the Microsoft Exchange Server. Each protocol specification documents the technical requirements, limitations, dependencies, and Microsoft-specific protocol behavior.

The documentation set includes a set of companion overview and reference documents that supplement the technical specifications with conceptual background, overviews of inter-protocol relationships and interactions, and technical reference information.

Microsoft Exchange Server Protocol Documentation

File Name: Exchange_Protocols.zip
Size: 78.5MB
Version: 13.0
Date Published: 4/27/2012
Language: English

Вышел Update Rollup 2 для Exchange Server 2010 Service Pack 2

UR2 устраняет проблемы обнаруженные со времен релиза Exchange Server 2010 SP2. Данное обновление рекомендуется для всех Exchange Server 2010 SP2.

Загрузить Update Rollup 2 для Exchange Server 2010 SP2 можно отсюда

Update Rollup 2 for Exchange Server 2010 Service Pack 2 (KB2661854)

Version: 14.2.298.4
Date published: 4/16/2012
KB articles: KB2661854

File name: Exchange2010-KB2661854-x64-en.msp
Size: 30.8 MB

Список исправлений вошедших в Update Rollup 2

• 2519806  A meeting request that is sent by an external user or by using a non-Microsoft email system is stamped as Busy instead of Tentative in an Exchange Server 2010 environment
• 2556766  Slow performance when you create many contacts by using Exchange Web Services in an Exchange Server 2010 environment
• 2592398  Email messages in the Sent Items folder have the same PR_INTERNET_MESSAGE_ID property in an Exchange Server 2010 environment
• 2601301  Customized contact objects revert to the default form after a public folder database replication in an Exchange Server 2010 environment
• 2625450  You cannot generate an OAB file that is larger than 2GB in an Exchange Server 2010 environment
• 2630808  A user can log on to a mailbox by using Outlook for Mac 2011 unexpectedly in an Exchange Server 2010 environment
• 2632201  MAPI_E_INVALID_PARAMETER errors occur when a MAPI application receives notifications in an Exchange Server 2010 environment
• 2635223  A hidden user is still displayed in the Organization information of Address Book in OWA in an Exchange Server 2010 environment
• 2636387  Event ID 3022 is logged and you cannot replicate a public folder from one Exchange Server 2010 server to another
• 2636883  Returned message items can disappear from the search results view when you use Outlook in online mode in an Exchange Server 2010 environment
• 2641249  Error message when you use the "Folder.Bind" method in an Exchange Server 2010 environment
• 2641753  An email message from an Exchange Server 2003 user is forwarded incorrectly to an external recipient of an Exchange Server 2010 user mailbox
• 2644144  A read receipt is not sent when a receiver does not expand a conversation to preview the message by using OWA in an Exchange Server 2010 environment
• 2644920  The Get-FederatedDomainProof cmdlet fails in an Exchange Server 2010 SP1 environment
• 2645587  An external email message is not delivered to mail-enabled public folders and you do not receive NDR messages in an Exchange Server 2010 environment
• 2649499  Updates for a meeting request are sent to all attendees directly in an Exchange Server 2010 environment
• 2649679  Text in tables is displayed incorrectly in the Conversation view in Outlook Web App in an Exchange Server 2010 environment
• 2652730  You encounter failures when you run the Test-EcpConnectivity cmdlet to test Exchange Control Panel connectivity in an Exchange Server 2010 environment
• 2657103  CPU resources are used up when you use the Set-MailboxMessageConfiguration cmdlet in an Exchange Server 2010 environment
• 2660178  "More than one mailbox has the same e-mail address" error message when you try to manage a mailbox in a tenant organization in an Exchange Server 2010 SP1 Hosting mode environment
• 2661277  An ActiveSync user cannot access a mailbox in an Exchange Server 2010 forest
• 2661294  An email address policy does not generate the email addresses of recipients correctly in an Exchange Server 2010 environment
• 2663581  OK button is not displayed when you change your password in Outlook Web App by using Firefox in an Exchange Server 2010 environment
• 2664365  Certain MailboxStatistics properties are not updated when a user uses a POP3 or IMAP4 client to access a mailbox in an Exchange 2010 environment
• 2664761  DPM protection agent service may stop responding on Exchange Server 2010 servers that are protected by System Center DPM 2010
• 2665806  Error message when you open an RTF email message that has inline attachments in an Exchange Server 2010 environment
• 2672225  A user in a trusted account forest cannot use the EMC to manage an Exchange Server 2010 SP2 server
• 2673087   Error message when you try to copy the Inbox folder to another folder in Outlook in online mode in an Exchange Server 2010 environment
• 2677847  The Microsoft Exchange File Distribution service consumes large amounts of memory in an Exchange Server 2010 environment
• 2678361  The user-agent information about an Exchange ActiveSync device is not updated in an Exchange Server 2010 environment
• 2678414  The display name of a contact in address book is empty in an Exchange Server 2010 environment
• 2681464  An EWS application crashes when it calls the GetStreamingEvents operation in an Exchange Server 2010 environment
• 2685996  Error message when a user who does not have a mailbox tries to move or delete an item that is in a shared mailbox by using Outlook Web App Premium
• 2688667  W3wp.exe consumes excessive CPU resources on Exchange Server 2010 Client Access servers when users open recurring calendar items in mailboxes by using Outlook Web App or EWS
• 2693078  EdgeTransport.exe process crashes in an Exchange Server 2010 environment
• 2694280  Whatif switch does not work in the Set-MoveRequest or Resume-MoveRequest cmdlet in an Exchange Server 2010 environment
• 2694289  Resource mailbox does not forward meeting request to delegates after one of the delegates' mailbox is disabled in an Exchange Server 2010 environment
• 2694414  The update tracking information option does not work in an Exchange Server 2010 environment
• 2694473  File name of a saved attachment is incorrect when you use OWA in Firefox 8 in an Exchange Server 2010 environment
• 2694474  Incorrect delivery report when you send an email message to a recipient who has configured an external forwarding address in an Exchange Server 2010 environment
• 2696857  EdgeTransport.exe process crashes without sending an NDR message when you send a message to a distribution group in an Exchange Server 2010 environment
• 2696905  Day of the week is not localized in MailTips in Outlook Web App in an Exchange Server 2010 environment
• 2696913  You cannot log on to Outlook Web App when a proxy is set up in an Exchange Server 2010 environment

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Про Exchange Server 2010 Service Pack 2 вы можете прочесть тут

Также смотрим пост на Exchange Team Blog Released: Update Rollup 2 for Exchange 2010 Service Pack 2