This will show how to create new user mail box on exchange 2010.

1. Open Exchange Managment Console

Go to Start > All Program > Microsoft Exchange Server 2010 > Exchange Management Console > Open
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2. Exchange Management Console

Expanded tree menu on left panel
Microsoft Exchange > Microsoft Exchange On-Premises(yourdomain.com) > Recipient Configuration > Mailbox
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3.New Mailbox...

After click on "Mailbox", On the right hand side.
Actions > Mailbox > New Mailbox...
To configuration new mailbox
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4.Introduction

Choose mailbox type > User Mailbox > Next
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5.User Type

You can create mailboxes for New user or Existing users(The user that has been create before or disconnected user)

This example will choose "New User" > Next
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User Information:
Specific the organizational unit for user or using a default(Browse...).
Enter the user name and account information.
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Mailbox Settings:
Enter the alias for the mailbox user and specify the mailbox database or using automatically select.
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Select mailbox database page (Default: "Mailbox Database 0985xxxx")
Then click Next >
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Archive Setting
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This step can link online archive to your mailbox and select mailbox database to archive.

For this example will Choose "Don't create an archive"
Click Next >

6. New Mailbox

Review the configuration summary before click "New" to create.
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7. Completion

The wizard completed successfully, if fail will show detail.
Click "Finish"
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8. Description Mailbox

On "mailbox" (Microsoft Exchange > Microsoft Exchange On-Premises > Recipient Configuration > Mailbox)

Right click on new created mailbox > Properties > Organization
Enter the information of mailbox
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