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By email addresses do you mean that you want to export total no of mailboxes in Exchange 2016?<br />
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if yes you can try below CMD on Exchange Management PowerShell prompt.<br />
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Example:<br />

<pre><code id="code-20-42225491-1">Get-Mailbox -ResultSize Unlimited | Select Name,Alias,PrimarySmtpAddress | Export-CSV &quot;Userdata.csv&quot; -Notype</code></pre>
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By email addresses do you mean that you want to export total no of mailboxes in Exchange 2016?

if yes you can try below CMD on Exchange Management PowerShell prompt.

Example:


Get-Mailbox -ResultSize Unlimited | Select Name,Alias,PrimarySmtpAddress | Export-CSV "Userdata.csv" -Notype

Screen-Shot-2017-07-23-at-11.31.25-A.png

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@Todd Nelson - I simply paste this on Exchange Shell?
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@Todd Nelson - I simply paste this on Exchange Shell?

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Yes. You may need to change the path to write the CSV file however.
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Yes. You may need to change the path to write the CSV file however.

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Sufficient info provided for solution.
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Anyone can help on how to export a list of available email addresses from Exchange 2016?
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Anyone can help on how to export a list of available email addresses from Exchange 2016?

How to export a list of email addresses from Exchange 2016??

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

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Windows PowerShell is a task automation and configuration management framework from Microsoft, consisting of a command-line shell and associated scripting language built on the .NET Framework. PowerShell provides full access to the Component Object Model (COM) and Windows Management Instrumentation (WMI), enabling administrators to perform administrative tasks on both local and remote Windows systems as well as WS-Management and Common Information Model (CIM) enabling management of remote Linux systems and network devices.