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OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER HOW TO
OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER INSTALL
OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER DOWNLOAD
OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER WINDOWS

Since they are requesting the DNS name, the certificate is valid. This way when clients locally lookup they are instead returned the INTERNAL IP of your mail server.

OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER WINDOWS

Just to add to and clarify this answer, you can add a forward lookup zone of in your internal Windows DNS servers, and then add an A record for in the forward lookup zone, pointing at your internal server IP address. When your Exchange server’s configuration has been corrected the Outlook security alerts should stop appearing for your end users.Įxchange Server Certificates, Exchange 2016, Outlook, SSL

OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER INSTALL

Using the steps demonstrated above you can reconfigure your namespaces and/or install a valid SSL certificate. The common causes of Outlook security alerts containing certificate warnings are misconfigured Exchange server namespaces, and invalid SSL certificates.

Enable the SSL certificate for Exchange services.

Complete the pending certificate request on the Exchange server.

Submit the CSR to a certificate authority such as Digicert.

Create a certificate signing request (CSR).

To provision an SSL certificate for your Exchange 2016 server the process is:

SSL Certificates for Exchange Server 2016.

If this is a new concept for you then I recommend some additional reading:

With the namespaces correctly configured, and DNS records in place, you will then need to provision an SSL certificate for the Exchange 2016 server. If you have multiple Exchange servers then either DNS round robin or a load balancer could be used instead. In this example I add an A record of “mail” to my internal DNS zone, and point it to the IP address of the Exchange 2016 server (because it is the only server in the organization). You also need to add a DNS record for the namespace if one does not already exist. In some cases an IIS restart on the server is also necessary after configuring the namespaces.

OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER DOWNLOAD

You can read more about that here, and also download my PowerShell script ConfigureExchangeURLs.ps1 to make the process easier. However, as this is also a new server installation all of the other HTTPS services also need their URLs reconfigured. In this example I will change the Autodiscover URL to use the DNS name of. This is part of your overall Client Access namespace planning for Exchange 2016. Instead, you should configure it to use a different DNS name or alias. It is not recommended to leave the Autodiscover URL configured with the server’s fully-qualified domain name.

Configure the Autodiscover URL for the serviceĬonfiguring the Autodiscover URL for Exchange 2016.

OUTLOOK 2016 CRASHES ON STARTUP DURING AUTODISCOVER HOW TO

How to Fix Outlook Security Warnings After Installing Exchange 2016

The name on the certificate matches the server name (or URL) that the client is connecting to.

The certificate was issued by a trusted certificate authority (CA).

The Exchange server also has a number of other web services that are accessible using HTTPS connections from clients, such as Exchange Web Services (EWS), Outlook on the web (also known as OWA), ActiveSync (for mobile devices), and Outlook Anywhere (used by Outlook clients).Īs the connection is over HTTPS the SSL certificate configured on the server must meet three criteria to be considered valid by the client: The old cmdlets are still available in Exchange 2016, but if you use them you will see a warning message that they are deprecated.Īutodiscover is accessible via an HTTPS (SSL) connection from clients. With the changes in Exchange 2016 server roles architecture the new cmdlets for these management tasks are *-ClientAccessService. Note: Previous versions of Exchange used the Get-ClientAccessServer cmdlet. You can see the Autodiscover URL for an Exchange 2016 server by running the Get-ClientAccessService cmdlet in the Exchange Management Shell. For example, Outlook uses Autodiscover during the setup of a new Outlook profile to discover the server settings for the user, so that the profile can be automatically configured (instead of the old days of manually entering server names and other details into Outlook).īy default the Autodiscover SCP is registered using a URL that includes the Exchange server’s fully-qualified domain name. Autodiscover is used by client applications to discover information about Exchange mailboxes and services. When you install Exchange Server 2016 into your Active Directory environment the setup process registers a Service Connection Point (SCP) for the Autodiscover service. Why Does Outlook Display a Security Warning for a Certificate Problem?

Configuring the Autodiscover URL for Exchange 2016.

How to Fix Outlook Security Warnings After Installing Exchange 2016.

Why Does Outlook Display a Security Warning for a Certificate Problem?.