Establishing a Connection
Enabling SSIS in Visual Studio 2022
If you're using Visual Studio 2022, you will need to install the SQL Server Integration Services Projects extension to use SSIS.
- Navigate to Extensions > Manage Extensions.
- In the Manage Extensions window's search box, search for "SQL Server Integration Services Projects 2022" and select the extension in the list.
- Click Download.
- Close Visual Studio and run the downloaded Microsoft.DataTools.IntegrationServices.exe installer. Proceed through the installer with default settings.
- Open Visual Studio. There should now be an "Integration Services Project" project template available.
Adding the Microsoft Exchange Connection Manager
Create a new connection manager as follows:
- Create a Visual Studio project with the "Integration Services Project" template.
- In the project, right-click within the Connection Managers window and select New Connection from the menu.
- In the Description column, select CData Microsoft Exchange Connection Manager and click Add...
- Configure the component as described in the next section.
Alternatively, if you have an existing project and CData Microsoft Exchange Source or CData Microsoft Exchange Destination:
- Right-click your CData Microsoft Exchange source or destination component in your data flow
- Select Edit... to open an editor window.
- Click the New... button next to the Connection manager: dropdown selector to create a connection manager.
- Configure the component as described in the next section.
Connecting to Microsoft Exchange
There are two schemas available for connecting to Exchange:
- Microsoft Graph
- Exchange Web Services (EWS) (deprecated)
Note: Microsoft recommends that Exchange Online users switch to Microsoft Graph.
For a look at the data model for each of these schemas, see Data Model
To switch between Microsoft Graph and EWS, set Schema to either MSGraph or EWS (deprecated).
Exchange Online users who still want to use EWS should set Schema to EWS and the Platform to Exchange_Online.
Authenticating to Microsoft Exchange OnPremises
Microsoft Exchange OnPremises supports Basic (default), Digest, Negotiate, or NTLM authentication.
Basic (default)
Microsoft Exchange OnPremises defaults sets Basic as the default authentication. To support Basic authentication, set these properties:- AuthScheme: Basic.
- User: The user's login ID.
- Password: The user's login password.
Digest
To support HTTP Digest authentication in an On-Premises deployment, set these properties:- AuthScheme: Digest.
- User: The user's login ID.
- Password: The user's login password.
Negotiate
Negotiate is used to direct the driver to negotiate an authentication mechanism with the server. The purpose of this authscheme is to facilitate Kerberos authentication in an On-Premises deployment. To support Kerberos authentication in an On-Premises deployment, set these properties:- AuthScheme: Negotiate.
- User: The user's login ID.
- Password: The user's login password.
NTLM
To use Windows NT LAN Manager (NTLM) authentication in an On-Premises deployment, set these parameters:- AuthScheme: NTLM.
- User: The user's login Id.
- Password: The user's login password.
Authenticating to Microsoft Exchange Online
Microsoft Exchange Online supports several types of OAuth-based authentication.If you are connecting to Exchange Online platform through EWS, set AuthScheme to AzureAD, AzureServicePrincipal, or AzureMSI.
If you connect to Exchange Online through Microsoft Graph, set Schema to MSGraph. When Schema is set to MSGraph, the Platform is ignored.
Entra ID (Azure AD)
Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".
Microsoft Entra ID is a multi-tenant, cloud-based identity and access management platform. It supports OAuth-based authentication flows that enable the driver to access Microsoft Exchange endpoints securely.
Authentication to Entra ID via a web application always requires that you first create and register a custom OAuth application. This enables your application to define its own redirect URI, manage credential scope, and comply with organization-specific security policies.
For full instructions on how to create and register a custom OAuth application, see Creating an Entra ID (Azure AD) Application.
After setting AuthScheme to AzureAD, the steps to authenticate vary, depending on the environment. For details on how to connect from desktop applications, web-based workflows, or headless systems, see the following sections.
Desktop Applications
You can authenticate from a desktop application using either the driver's embedded OAuth application or a custom OAuth application registered in Microsoft Entra ID.
Option 1: Use the Embedded OAuth Application
This is a pre-registered application, included with the driver. It simplifies setup and eliminates the need to register your own credentials and is ideal for development environments, single-user tools, or any setup where quick and easy authentication is preferred.
Set the following connection properties:
- AuthScheme: AzureAD
- InitiateOAuth:
- GETANDREFRESH – Use for the initial login. Launches the login page and saves tokens.
- REFRESH – Use this setting when you have already obtained valid access and refresh tokens. Reuses stored tokens without prompting the user again.
When you connect, the driver opens the Microsoft Entra sign-in page in your default browser. After signing in and granting access, the driver retrieves the access and refresh tokens and saves them to the path specified by OAuthSettingsLocation.
Option 2: Use a Custom OAuth Application
If your organization requires more control, such as managing security policies, redirect URIs, or application branding, you can instead register a custom OAuth application in Microsoft Entra ID and provide its values during connection.
During registration, record the following values:
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was that was generated when you registered your custom OAuth application.
- CallbackURL: A redirect URI you defined during application registration.
For full instructions on how to register a custom OAuth application and configure redirect URIs, see Creating an Entra ID (Azure AD) Application.
Set the following connection properties:
- AuthScheme: AzureAD
- InitiateOAuth:
- GETANDREFRESH – Use for the initial login. Launches the login page and saves tokens.
- REFRESH – Use this setting when you have already obtained valid access and refresh tokens. Reuses stored tokens without prompting the user again.
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
- CallbackURL: A redirect URI you defined during application registration.
After authentication, tokens are saved to OAuthSettingsLocation. These values persist across sessions and are used to automatically refresh the access token when it expires, so you don't need to log in again on future connections.
Headless Machines
Headless environments like CI/CD pipelines, background services, or server-based integrations do not have an interactive browser. To authenticate using AzureAD, you must complete the OAuth flow on a separate device with a browser and transfer the authentication result to the headless system.
Setup options:
- Obtain and exchange a verifier code
- Use another device to sign in and retrieve a verifier code, which the headless system uses to request tokens.
- Transfer an OAuth settings file
- Authenticate on another device, then copy the stored token file to the headless environment.
Using a Verifier Code
- On a device with a browser:
- If using a custom OAuth app, set the following properties:
- InitiateOAuth: OFF
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
- Call the GetOAuthAuthorizationURL stored procedure to generate a sign-in URL.
- Open the returned URL in a browser. Sign in and grant grant permissions to the driver. You are redirected to the callback URL, which contains the verifier code.
- After signing in, save the value of the code parameter from the redirect URL. You will use this later to set the OAuthVerifier connection property.
- If using a custom OAuth app, set the following properties:
- On the headless machine:
- Set the following properties:
- AuthScheme: AzureAD
- InitiateOAuth: REFRESH
- OAuthVerifier: The verifier code you saved.
- OAuthSettingsLocation: The path of the file that holds the OAuth token values.
- For custom applications:
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
- After tokens are saved, reuse them by setting:
- InitiateOAuth: REFRESH
- OAuthSettingsLocation: Make sure this location grants read and write permissions to the driver to enable the automatic refreshing of the access token.
- For custom applications:
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
- Set the following properties:
Transferring OAuth Settings
- On a device with a browser:
- Connect using the instructions in the Desktop Applications section.
- After connecting, tokens are saved to the file path in OAuthSettingsLocation. The default filename is OAuthSettings.txt.
- On the headless machine:
- Copy the OAuth settings file to the machine.
- Set the following properties:
- AuthScheme: AzureAD
- InitiateOAuth: REFRESH
- OAuthSettingsLocation: Make sure this location grants read and write permissions to the driver to enable the automatic refreshing of the access token.
- For custom applications:
- OAuthClientId: The client Id that was generated when you registered your custom OAuth application.
- OAuthClientSecret: The client secret that was generated when you registered your custom OAuth application.
After setup, the driver uses the stored tokens to refresh the access token automatically, no browser or manual login is required.
Azure Service Principal
Note: Microsoft has rebranded Azure AD as Entra ID. In topics that require the user to interact with the Entra ID Admin site, we use the same names Microsoft does. However, there are still CData connection properties whose names or values reference "Azure AD".
Azure Service Principal is role-based application-based authentication. This means that authentication is done per application, rather than per user.
All tasks taken on by the application are executed without a default user context, but based on the assigned roles.
The application access to the resources is controlled through the assigned roles' permissions.
For information about how to set up Azure Service Principal authentication, see Creating a Service Principal App in Entra ID (Azure AD).
Managed Service Identity (MSI)
If you are running Microsoft Exchange on an Azure VM and want to automatically obtain Managed Service Identity (MSI) credentials to connect, set AuthScheme to AzureMSI.
User-Managed Identities
To obtain a token for a managed identity, use the OAuthClientId property to specify the managed identity's client_id.If your VM has multiple user-assigned managed identities, you must also specify OAuthClientId.