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Powershell is the appropriate solution for this. See below script.<br />
<br />
Have your CSV file with a column heading of <b>UPN</b> and all of the users <br />

<pre><code id="code-20-40874520-1">$Userlist = Import-Csv &quot;c:\filename.csv&quot;
foreach ($Entry in $Userlist) {
$Entry.UPN
Add-DistributionGroupMember -Identity &quot;GroupName&quot; -Member $Entry.UPN</code></pre>
<br />
Will.
</div>


Powershell is the appropriate solution for this. See below script.

Have your CSV file with a column heading of UPN and all of the users


$Userlist = Import-Csv "c:\filename.csv"
foreach ($Entry in $Userlist) {
$Entry.UPN
Add-DistributionGroupMember -Identity "GroupName" -Member $Entry.UPN


Will.

<div>
<div class="content wysiwyg-content">
I am supposed to create distribution lists in exchange 2010 adding 1000 members in it.<br />
<br />
please let me know the methods
</div>
</div>


I am supposed to create distribution lists in exchange 2010 adding 1000 members in it.

please let me know the methods

Exchange 2010

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.

Exchange

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.