<div>
Yes, create new CSR, get the new cert and install it. Then assign the service to new cert.
</div>


Yes, create new CSR, get the new cert and install it. Then assign the service to new cert.

<div>
<div class="content wysiwyg-content">
We have Exchange 2010 and 2003 running in co-existence mode <br />
All roles- CAS, MB, Transport are installed on the same exchange 2010.<br />
We need to add an additional cert, actually replace existing UCC cert with the new one including additional SA name to both servers.<br />
What is the proper way to do it?<br />
for example, do we need to create a new CSR ?<br />
<br />
<br />
Thanks
</div>
</div>


We have Exchange 2010 and 2003 running in co-existence mode 
All roles- CAS, MB, Transport are installed on the same exchange 2010.
We need to add an additional cert, actually replace existing UCC cert with the new one including additional SA name to both servers.
What is the proper way to do it?
for example, do we need to create a new CSR ?


Thanks

Adding an additional Subject Alternative Name to Exchange 2010 and 2003 UCC cert

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.