Microsoft Exchange team is announcing the availability of Update Rollup and Cumulative Updates for Exchange Server 2007 SP3, Exchange Server 2010 SP3 and Exchange Server 2013.

Each of the following links will lead you to the respective pages for more detail and download.

Exchange Server 2007 SP3

More Info Link:- Update Rollup 14 for Exchange Server 2007 Service Pack 3

Download Link - Update Rollup 14 for Exchange Server 2007 Service Pack 3 (KB2936861)

Exchange Server 2010 SP3

More Info Link:- Update Rollup 7 for Exchange Server 2010 Service Pack 3

Download Link:- Update Rollup 7 For Exchange 2010 SP3 (KB2961522)

Exchange Server 2013

More Info Link:- Cumulative Update 6 for Exchange Server 2013

Brief Info:- Released: Cumulative Update 6 for Exchange Server 2013

Download Link:- Cumulative Update 6 for Exchange Server 2013 (KB2961810)


Share you experience, which will be helpful in planning and executing the updates.

Update from other blogs:

There are few issues observed of applying the CU6 for Exchange 2013, please read carefully and understand if your scenario has any simlarity with it.

Exchange 2013 CU6 hybrid and co-existence bugs cause administrators to despair

Solution/Fix: Exchange 2013 CU6 hybrid and co-existence bugs - Microsoft Released Script to Fix it

The above script to be applied post the installation of CU6.


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Microsoft Exchange CXP team has released the following updates,

See Microsoft Security Bulletin MS12-080 - Critical which covers all the three updates, and as stated it is security updates and hence available thorugh the windows update list.

For more details about UR5-v2 of Exchange 2010 SP2, please refer Description of Update Rollup 5 version 2 for Exchange Server 2010 Service Pack 2

Ref - Released: Update Rollup 5 v2 for Exchange 2010 SP2, Exchange 2010 SP1 RU8 and Exchange 2007 SP3 RU9


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I already have shared a script for migrating user mailbox into linked mailbox during the cross forest migration scenario in one of my previous posts, see here. Sometime(I faced all the time) during this process you would have observed that after the creation of linked mailboxes all manually configured limit, mailbox features are set back to the default. I have created two small of power shell command combination to import the features and the limits from a csv file.

Set the limit, follow this

Mandatorily, we need to extract the each mailbox limit details from exchange data before the linked mailbox conversion. This step is to get the existing values into a csv file, you may use the simple power shell command pated below to export the current data,

Get-Mailbox  -ResultSize 3000 | select UserPrincipalName,IssueWarningQuota,ProhibitSendQuota,ProhibitSendReceiveQuota, MaxSendSize,MaxReceiveSize,RecipientLimits | Export-Csv C:\LimitDetails.csv

The output file will be like,


Remove the file line starts with “#Type System…..” and save it in the drive C:\ with the same name.

Note - In my scenario total user is less than 3000, if you have more than 3000 users the -ResultSize can be mentioned accordigly.

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In case of cross forest migration, most of us will plan the mailbox and account migration together to avoid complexity. However, there are situations where we plan to go one by one (all the user account migration first and then the mailbox migration). In my case, I chose to do the user account migration due to some dependency to the new forest and keep the User Mailboxes still in the source forest (existing forest). As you all know, we have to create linked mailboxes in this scenario and the process would be,

Note – The source forest has Exchange 2007 Servers Org.

  1. Disabled the user account in source forest (Use ADUC)
  2. Disable the user mailbox(Disable-Mailbox cmdlet)
  3. Run the Clean-MailboxDatabase against the DB to quickly show the diconnected mailboxes in EMC
  4. Connect the mailbox as Linked Mailbox.

Imagine you have many users to be migrated, definitely the activity going to eat up a lot of your time. Use the simple piece of script to finish your linked mailbox creation in few minutes ….

Imp Note - Ensure that the AD user accounts corresponding to the user mailbox (source AD accounts) are disabled during the account migration using ADMT. If you did not choose to disable the source account during account migration, you need to disable those account before going for linked mailbox creation.

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