<div>
Output of Get-ServerComponentstate -identity servername showing ewsproxy as active?
</div>


Output of Get-ServerComponentstate -identity servername showing ewsproxy as active?

<div>
yes it is active on the new server
</div>


<div>
&quot;We upgraded EX2016 to 2019 and now the CRM-Connector doesnt work anymore.&quot;<br />
<br />
Before upgrade was there a connector for CRM on exchange 2016 with Anonymous Allowed.<br />
<br />
Did you created a connector for CRM application on 2019 server.?
</div>


"We upgraded EX2016 to 2019 and now the CRM-Connector doesnt work anymore."

Before upgrade was there a connector for CRM on exchange 2016 with Anonymous Allowed.

Did you created a connector for CRM application on 2019 server.?

<div>
the connector is installed on the CRM server
</div>


the connector is installed on the CRM server

<div>
connection refused by remote host.<br />
<br />
Are you checking these logs from exchange server or CRM client.
</div>


connection refused by remote host.

Are you checking these logs from exchange server or CRM client.

<div>
<div class="content wysiwyg-content">
Hi Experts,<br />
<br />
I have a very urgent problem.<br />
We upgraded EX2016 to 2019 and now the CRM-Connector doesnt work anymore.<br />
This means the impersonation user cannot start the link from CRM to EXCH2019.<br />
<br />
When I test the EWS link, I get logon prompt. This is ok.<br />
But when I check the logs I get connection refused by remote host.<br />
<br />
DO you have any idea ?<br />
Is it maybe .NET4.8 version ?
</div>
</div>


Hi Experts,

I have a very urgent problem.
We upgraded EX2016 to 2019 and now the CRM-Connector doesnt work anymore.
This means the impersonation user cannot start the link from CRM to EXCH2019.

When I test the EWS link, I get logon prompt. This is ok.
But when I check the logs I get connection refused by remote host.

DO you have any idea ?
Is it maybe .NET4.8 version ?

major EWS problem

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

IIS is Internet Information Services, the web server included with Windows Server operating systems. All current versions are built on a modular architecture; modules can be added or removed individually so that those required for specific functionality are installed. The full installation of IIS includes HTTP, security, content, compression, caching, logging and diagnostics.