How can I set up my mail app to connect with Exchange.

To Setup an Exchange account in the Mail app:

1.      From the Windows RT Start screen, tap or click the Mail app tile.

2.      From the Mail app, swipe in from the right edge of the screen, and then tap Settings.
(If you're using a mouse, point to the upper-right corner of the screen, move the mouse pointer down, and then click Settings.)

3.      Tap or click Accounts.

4.      Tap or click Add an account.

5.      Tap or click Outlook Exchange, Office 365, Outlook.com.

6.      Enter your Email address and Password.

7.      Tap or click Connect.

Note: If the account is not found and User receives the following “We couldn't find settings for <email address>. Provide us with more info and we’ll try connecting again” is displayed and more information is requested.  Complete the following step to add the account.

8.      Click or tap Show more details.

9.      Enter your Server Address, Domain, and Username. 

Note: You may need to contact your Email Provider or System Administrator to determine the correct values for these fields.

10.  Tap or click Connect.

Issue: If the Mail app will not connect to Exchange Server and you continue to receive the following errors: "Unable to connect. Ensure the information entered is correct" and <Email address> is unavailable” please follow the instructions below.

If you’re encountering this issue, the Mail app may have issues connecting to Exchange with Self-signed certificates.  Make sure Windows have the latest build of the Mail app (version 16.4.4396.1016). To resolve the issue, customers must install the self-signed certificates by following one of the options below:

I.            IT Admins can install a cert signed by a trusted root CA on the server.

a.       This will enable Exchange to work for all clients (without prompting), including Windows RT.

b.      Details on Program Overview            

c.       List of Trusted Root CAs for Windows

II.            Users (or IT admins) can install their server’s self-signed cert on every device in the org

a.       This will enable Exchange to work for Windows RT clients with the installed certificate

b.      See steps below:

Installing self-signed certificates for your Domain’s Certification Authority

 In order for self-signed certificates to work, the administrator needs to provide a certificate file that will be installed on client machines that are to be connected to the server that uses self-signed certificates. The certificates need to be installed to the trusted root certificate authority store for either the current user (doesn't require admin rights but needs to be completed for each user on the machine) or the local machine (requires admin rights and needs to be done only once for a machine).

 Important:  The following section contains steps that require administrative privileges to perform. Serious problems might occur if these steps are performed incorrectly. Please make sure that you follow these steps carefully. 

Certificates can be installed using the following means:

Command Line:  Running the following from an admin elevated command prompt will install the certificate to the trusted root certificate authorities for all users using that machine.  

certutil.exe -f -addstore root <name_of_certificatefile>.cer

 User Interface:

1.       Double click the certificate file provided by the administrator. This will open a certificate dialog.

2.       From the Certificate dialog, click the “Install Certificate” button located on the general tab. This will open a Certificate Import Wizard Window.

3.       Select the option to install the certificate for only the current user or for the Local Machine.

4.       Select “Place all certificates in the following store”.

5.       Click the browse button to open the store selection dialog.

6.       Select “Trusted Root Certification Authorities”

7.       Once the store is selected, click Ok. This will return you to Certificate Import Wizard dialog and will display the certificate store and certificate to be installed into that store.

8.       Click finish to install the certificate.

If this does not work, please let post below so we can reach out to you to resolve the issue.