Migrate new user to O365

Pre-Migration Work Create the AD user account and Exchange on-prem mailbox Confirm UPN suffix of user account matches the email address Go to O365 admin console and add the user license Migrate users Connect to Exchange On-line From the PowerShell console on an Exchange 2010 server: $Cred = Get-Credential  $s = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri https://ps.outlook.com/powershell -Credential $cred -Authentication Basic –AllowRedirection  […]

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Exchange 2010: Change security groups to distribution groups

Distribution groups are a well-known concept for Exchange admins. Quite simply, a distribution group is an Active Directory group that’s Exchange-enabled and therefore has an email address. Messages sent to the group are delivered to group members, which can be mailbox users, mail users (users with an email address outside the Exchange org), mail contacts, distribution groups and mail-enabled public […]

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How to Move Mailboxes in Exchange Server 2010

Mailbox moves in previous versions of Exchange were interactive in nature, in that a wizard, script or shell command was used to move the mailbox and it occured in real time. In Exchange Server 2010 mailbox moves are now handled using move requests.  In short, the move request is submitted into a queue and processed by the Mailbox Replication Service […]

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Exchange 2010 – List All Mailbox Sizes

Using the Exchange Management Shell, you can create a create a report of all mailboxes and list their size. List all mailboxes in a database – Exchange Management Shell The following command will list all mailboxes in the ‘MailDB1’ database: Get-MailboxStatistics -Database ‘MailDB1’ | format-table DisplayName, TotalItemSize, TotalDeletedItemSize, Database, ServerName List all mailboxes on a server – Exchange Management Shell The […]

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Exchange 2010 – Enable External Automatic Replies

By default, Exchange 2010 doesn’t allow sending automatic forwards, replies and Out of Office Assistant Messages (OOF) to external email addresses. This is mainly for security and performance reasons, as it ensures there can’t be any mail loops or that Exchange doesn’t automatically reply to any spam messages. With this in mind, you may need to enable this as a […]

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Exchange 2010 – Allow external senders to use distribution list

By default when you create a distribution group (also known as a distribution list) external email addresses are unable to send emails to the group. To allow external email addresses to use the group you will need to disable the ‘Require that all senders are authenticated’ option. Please note, this may open your server and users to unwanted spam. You […]

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6 Tips for a Successful Patching Process

  Whether your servers run Windows or Linux, whether your workstations are Windows 7 or Macs, and no matter what vendor your network gear comes from, one of the most critical administrative tasks for admins of any system is patching. With new vulnerabilities announced every week, and with dozens, if not hundreds of different applications running on your network, having […]

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Exchange 2010 – Cannot login after mailbox has been disabled and attached to different AD user account

I was asked to rename an Exchange account (sitting on an Exchange 2010 SP2 server) for a customer today because the surname had changed so to do this tidily, I disabled the Exchange Mailbox, cleaned up the Databases to make the mailbox appear in the Detached Mailboxes folder using the following Exchange Management Shell command: get-mailboxdatabase | clean-mailboxdatabase     […]

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Exchange Best Practices: Mailbox Storage Quotas

The trend for Exchange Server in recent years is towards larger mailboxes. Email is a heavily used application, users are demanding more storage for their email, and current versions of Exchange Server have been engineered to provide large mailboxes without requiring expensive, high performance storage subsystems to store it all. All of that does not mean that you should remove […]

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