We’ve run into a problem with your Office 365 subscription

After moving some Mailboxes from Office 365 to Exchange 2013 on-premises and disabling licenses in the Office 365 portal I got the following warning on my computer (laptop and workstation):

Account Notice

We’ve run into a problem with your Office 365 subscription, and we need your help to fix it.

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Configure disks using PowerShell in Windows 2012 R2

When installing and configuring a large Exchange environment you most likely will have a lot of disks attached to the Exchange servers. Manual configuration of the disks is no fun so PowerShell is your friend here.

These are the steps that need to be done:

  • Create directory structure for the Mount Points (New-Item).
  • Set the disks online and initialize them (Initialize-Disk).
  • Create the partitions (New-Partition).
  • Link them into the Mount Point structure (Add-PartitionAccessPath)
  • Format them (Format-Volume).

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Cluster Administrative Access Point and Database Availability Group

One of the new features in Windows Server 2012 R2 to decrease complexity is the so called Active Directory detached cluster. This is a regular Failover Cluster, but without a computer account in Active Directory. So, when deploying the Failover Cluster there’s no need to pre-create the Computer Name Object (CNO) anymore, but please note that the individual Cluster nodes still need to be a member of the Active Directory domain though.

Since the CNO is no longer available in an Active Directory detached cluster, the Cluster Administrative Access Point (CAAP) is not available either and in turn this cluster AAP was used by the Failover Cluster Management to access and manage the cluster. Since the cluster AAP is no longer available this is also referred to as an AAP-less, cluster AAP-less or CAAP-less cluster.

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How to change the Postmaster address in Exchange 2013

While testing mail flow I noticed that when an NDR was sent out by my Exchange 2013 the default postmaster account was used, with the default domain, i.e. postmaster@contoso.local (I use a .local TLD on my Active Directory domain) instead of a regular and routable SMTP domain.

To change this you can open the Exchange Admin Center, navigate to Mail Flow | Receive Connectors and click the more options (the three dots) and select Organization Transport Settings as shown in the following figure.

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Call to action: Exchange 2007 and Windows 2003 support

Just a quick heads-up on support for Exchange 2007. Mainstream support for Exchange 2007 ended on April 10, 2012 and Extended Support will end on April 11, 2017. Rollup updates might be made available for another 2 years but you at this moment you should be planning to upgrade your platform.

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Continue reading Call to action: Exchange 2007 and Windows 2003 support

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