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-->Original KB number: 2682333
ResolutionAutoComplete (not to be confused with Suggested Contacts) displays names and email addresses as you start to type them. These are possible matches to names and email addresses gathered from the email that you have sent in the past. If AutoComplete isn't working, try these fixes:
Check to see if AutoComplete is turned on

Here's how to see if AutoComplete is turned on:
In Outlook, select File > Options.
Select the Mail tab.
Scroll roughly halfway down until you see Send messages. Ensure the Use AutoComplete List to suggest names when typing in the To, Cc, and Bcc lines box is checked.
If it's already turned on, your first troubleshooting step should be to clear out the Auto-Complete list. Select the Empty AutoComplete List button.
You'll see a confirmation window about clearing the AutoComplete list, select Yes.
Try sending a few test emails to the same email address. If AutoComplete doesn't start working, try the other steps listed in this article.
If you have a home email account

If AutoComplete is enabled and still not working correctly, there may be a problem with a file in your RoamCache folder. Rename the folder to reset AutoComplete. To do this, follow these steps:
Warning
You will lose all addresses stored in AutoComplete.
Start Outlook.
Select File > Info > Account Settings.
An Account Settings window will open, if it says Microsoft Exchange (under Type), use the Microsoft Exchange Server accounts portion of this article.
Exit Outlook.
Next we need to find the Outlook folder.
Select Start, type in or copy and paste %LOCALAPPDATA%MicrosoftOutlook into Search program and files.
Select the Outlook folder listed at the top of the window.
Right-click the RoamCache folder, select Rename, and change the folder name to old_RoamCache.
When Outlook restarts, it will create a new RoamCache folder.
Start Outlook.
iTunes, Outlook Change Notifier add-in interfering with Auto-CompleteiTunes also installs an add-in called Outlook Change Notifier. If you have iTunes Version 10.0.0.22, it had several issues that caused Outlook to not shut down gracefully, causing AutoComplete to not work correctly. Updating your iTunes software to version 10.1.0.56 or newer will take care of the Outlook Change Notifier issue.
If you no longer use iTunes or want to manually disable the add-in:
From within Outlook, select File > Options and select Add-Ins.
At the bottom of the dialog press the button Go...
Scroll down the list until you find Outlook Change Notifier and uncheck it.
Press OK to confirm and close the dialog.
If you have a Microsoft Exchange Server accountIf Auto-Complete is enabled and still not working correctly, there may be a problem with a file in your RoamCache folder. Rename the folder to reset AutoComplete. To do this, follow these steps:
Warning
You will lose all addresses stored in AutoComplete.
Open Outlook
Select File > Info > Account Settings.
An Account Settings window will open, if does not say Microsoft Exchange (under Type), use the home email account portion of this article.
Prepare Outlook to run without Cached Exchange Mode.
Select the File tab, and then select Account Settings.
Select Account Settings.
Select your Microsoft Exchange Server account, and then select Change.
Clear the Use Cached Exchange Mode check box, select Next, and then select Finish.
On the Account Settings dialog box, select Close.
Exit Outlook.
Next we need to find the Outlook folder.
Select Start, type in or Copy and Paste %LOCALAPPDATA%MicrosoftOutlook into Search program and files.
Select on the Outlook folder listed at the top of the window.
Right-click the RoamCache folder, select Rename, and change the folder name to old_RoamCache.
When Outlook restarts, it will create a new RoamCache folder.
Start Outlook.
Turn on Cached Exchange Mode.
Select the File tab, and select Account Settings.
Select Account Settings.
Highlight your Microsoft Exchange Server account, and then select Change.
Select the Use Cached Exchange Mode check box, select Next, and then select Finish.
On the Account Settings dialog box, select Close.
Exit and then restart Outlook.
What is the difference between AutoComplete and Suggested Contacts
Outlook also adds a folder to Contacts labeled Suggested Contacts. Addresses get added to this folder as you send or reply to messages addressed to people who don't exist in your Contacts folder. Outlook doesn't look in Suggested Contacts for names during the AutoComplete process. It only stores addresses that you might want to add to your Contacts. You can double-click an entry in Suggested Contacts and a Contact Form opens that allows you to save it to your Contacts Folder.
Need more help?
Get help from the Microsoft Community online or visit contact Microsoft Support to learn more about your support options.
-->Azure Active Directory's Application Proxy provides secure remote access to on-premises web applications. After a single sign-on to Azure AD, users can access both cloud and on-premises applications through an external URL or an internal application portal. For example, Application Proxy can provide remote access and single sign-on to Remote Desktop, SharePoint, Teams, Tableau, Qlik, and line of business (LOB) applications.
Azure AD Application Proxy is:
Simple to use. Users can access your on-premises applications the same way they access Microsoft 365 and other SaaS apps integrated with Azure AD. You don't need to change or update your applications to work with Application Proxy.
Pptx viewer download microsoft. Secure. On-premises applications can use Azure's authorization controls and security analytics. For example, on-premises applications can use Conditional Access and two-step verification. Application Proxy doesn't require you to open inbound connections through your firewall.
Cost-effective. On-premises solutions typically require you to set up and maintain demilitarized zones (DMZs), edge servers, or other complex infrastructures. Application Proxy runs in the cloud, which makes it easy to use. To use Application Proxy, you don't need to change the network infrastructure or install additional appliances in your on-premises environment.
What is Application Proxy?Application Proxy is a feature of Azure AD that enables users to access on-premises web applications from a remote client. Application Proxy includes both the Application Proxy service which runs in the cloud, and the Application Proxy connector which runs on an on-premises server. Azure AD, the Application Proxy service, and the Application Proxy connector work together to securely pass the user sign-on token from Azure AD to the web application.
Docstar Outlook Add InApplication Proxy works with:
Web applications that use Integrated Windows Authentication for authentication
Web applications that use form-based or header-based access
Web APIs that you want to expose to rich applications on different devices
Applications hosted behind a Remote Desktop Gateway
Rich client apps that are integrated with the Microsoft Authentication Library (MSAL)
Application Proxy supports single sign-on. For more information on supported methods, see Choosing a single sign-on method.
Application Proxy is recommended for giving remote users access to internal resources. Application Proxy replaces the need for a VPN or reverse proxy. It is not intended for internal users on the corporate network. These users who unnecessarily use Application Proxy can introduce unexpected and undesirable performance issues.

Outlook Best Docs Mumbai 2020How Application Proxy worksOutlook Docs TranslatorThe following diagram shows how Azure AD and Application Proxy work together to provide single sign-on to on-premises applications.
After the user has accessed the application through an endpoint, the user is directed to the Azure AD sign-in page.
After a successful sign-in, Azure AD sends a token to the user's client device.
The client sends the token to the Application Proxy service, which retrieves the user principal name (UPN) and security principal name (SPN) from the token. Application Proxy then sends the request to the Application Proxy connector.
If you have configured single sign-on, the connector performs any additional authentication required on behalf of the user.
The connector sends the request to the on-premises application.
The response is sent through the connector and Application Proxy service to the user.
Note
Like most Azure AD hybrid agents, the Application Proxy Connector doesn't require you to open inbound connections through your firewall. User traffic in step 3 terminates at the Application Proxy Service (in Azure AD). The Application Proxy Connector (on-premises) is responsible for the rest of the communication.
Outlook Docs LoginComponentDescription
EndpointThe endpoint is a URL or an end-user portal. Users can reach applications while outside of your network by accessing an external URL. Users within your network can access the application through a URL or an end-user portal. When users go to one of these endpoints, they authenticate in Azure AD and then are routed through the connector to the on-premises application.
Azure ADAzure AD performs the authentication using the tenant directory stored in the cloud.
Application Proxy serviceThis Application Proxy service runs in the cloud as part of Azure AD. It passes the sign-on token from the user to the Application Proxy Connector. Application Proxy forwards any accessible headers on the request and sets the headers as per its protocol, to the client IP address. If the incoming request to the proxy already has that header, the client IP address is added to the end of the comma separated list that is the value of the header.
Application Proxy ConnectorThe connector is a lightweight agent that runs on a Windows Server inside your network. The connector manages communication between the Application Proxy service in the cloud and the on-premises application. The connector only uses outbound connections, so you don't have to open any inbound ports or put anything in the DMZ. The connectors are stateless and pull information from the cloud as necessary. For more information about connectors, like how they load-balance and authenticate, see Understand Azure AD Application Proxy connectors.
Active Directory (AD)Active Directory runs on-premises to perform authentication for domain accounts. When single sign-on is configured, the connector communicates with AD to perform any additional authentication required.
On-premises applicationFinally, the user is able to access an on-premises application.

Component	Description
Endpoint	The endpoint is a URL or an end-user portal. Users can reach applications while outside of your network by accessing an external URL. Users within your network can access the application through a URL or an end-user portal. When users go to one of these endpoints, they authenticate in Azure AD and then are routed through the connector to the on-premises application.
Azure AD	Azure AD performs the authentication using the tenant directory stored in the cloud.
Application Proxy service	This Application Proxy service runs in the cloud as part of Azure AD. It passes the sign-on token from the user to the Application Proxy Connector. Application Proxy forwards any accessible headers on the request and sets the headers as per its protocol, to the client IP address. If the incoming request to the proxy already has that header, the client IP address is added to the end of the comma separated list that is the value of the header.
Application Proxy Connector	The connector is a lightweight agent that runs on a Windows Server inside your network. The connector manages communication between the Application Proxy service in the cloud and the on-premises application. The connector only uses outbound connections, so you don't have to open any inbound ports or put anything in the DMZ. The connectors are stateless and pull information from the cloud as necessary. For more information about connectors, like how they load-balance and authenticate, see Understand Azure AD Application Proxy connectors.
Active Directory (AD)	Active Directory runs on-premises to perform authentication for domain accounts. When single sign-on is configured, the connector communicates with AD to perform any additional authentication required.
On-premises application	Finally, the user is able to access an on-premises application.

Here's how to see if AutoComplete is turned on:
In Outlook, select File > Options.
Select the Mail tab.
Scroll roughly halfway down until you see Send messages. Ensure the Use AutoComplete List to suggest names when typing in the To, Cc, and Bcc lines box is checked.
If it's already turned on, your first troubleshooting step should be to clear out the Auto-Complete list. Select the Empty AutoComplete List button.
You'll see a confirmation window about clearing the AutoComplete list, select Yes.
Try sending a few test emails to the same email address. If AutoComplete doesn't start working, try the other steps listed in this article.
If you have a home email accountIf AutoComplete is enabled and still not working correctly, there may be a problem with a file in your RoamCache folder. Rename the folder to reset AutoComplete. To do this, follow these steps:
Warning
You will lose all addresses stored in AutoComplete.
Start Outlook.
Select File > Info > Account Settings.
An Account Settings window will open, if it says Microsoft Exchange (under Type), use the Microsoft Exchange Server accounts portion of this article.
Exit Outlook.
Next we need to find the Outlook folder.
Select Start, type in or copy and paste %LOCALAPPDATA%MicrosoftOutlook into Search program and files.
Select the Outlook folder listed at the top of the window.
Right-click the RoamCache folder, select Rename, and change the folder name to old_RoamCache.
When Outlook restarts, it will create a new RoamCache folder.
Start Outlook.
iTunes, Outlook Change Notifier add-in interfering with Auto-CompleteiTunes also installs an add-in called Outlook Change Notifier. If you have iTunes Version 10.0.0.22, it had several issues that caused Outlook to not shut down gracefully, causing AutoComplete to not work correctly. Updating your iTunes software to version 10.1.0.56 or newer will take care of the Outlook Change Notifier issue.
If you no longer use iTunes or want to manually disable the add-in:
From within Outlook, select File > Options and select Add-Ins.
At the bottom of the dialog press the button Go...
Scroll down the list until you find Outlook Change Notifier and uncheck it.
Press OK to confirm and close the dialog.
If you have a Microsoft Exchange Server accountIf Auto-Complete is enabled and still not working correctly, there may be a problem with a file in your RoamCache folder. Rename the folder to reset AutoComplete. To do this, follow these steps:
Warning
You will lose all addresses stored in AutoComplete.
Open Outlook
Select File > Info > Account Settings.
An Account Settings window will open, if does not say Microsoft Exchange (under Type), use the home email account portion of this article.
Prepare Outlook to run without Cached Exchange Mode.
Select the File tab, and then select Account Settings.
Select Account Settings.
Select your Microsoft Exchange Server account, and then select Change.
Clear the Use Cached Exchange Mode check box, select Next, and then select Finish.
On the Account Settings dialog box, select Close.
Exit Outlook.
Next we need to find the Outlook folder.
Select Start, type in or Copy and Paste %LOCALAPPDATA%MicrosoftOutlook into Search program and files.
Select on the Outlook folder listed at the top of the window.
Right-click the RoamCache folder, select Rename, and change the folder name to old_RoamCache.
When Outlook restarts, it will create a new RoamCache folder.
Start Outlook.
Turn on Cached Exchange Mode.
Select the File tab, and select Account Settings.
Select Account Settings.
Highlight your Microsoft Exchange Server account, and then select Change.
Select the Use Cached Exchange Mode check box, select Next, and then select Finish.
On the Account Settings dialog box, select Close.
Exit and then restart Outlook.
What is the difference between AutoComplete and Suggested Contacts
Outlook also adds a folder to Contacts labeled Suggested Contacts. Addresses get added to this folder as you send or reply to messages addressed to people who don't exist in your Contacts folder. Outlook doesn't look in Suggested Contacts for names during the AutoComplete process. It only stores addresses that you might want to add to your Contacts. You can double-click an entry in Suggested Contacts and a Contact Form opens that allows you to save it to your Contacts Folder.
Need more help?
Get help from the Microsoft Community online or visit contact Microsoft Support to learn more about your support options.
-->Azure Active Directory's Application Proxy provides secure remote access to on-premises web applications. After a single sign-on to Azure AD, users can access both cloud and on-premises applications through an external URL or an internal application portal. For example, Application Proxy can provide remote access and single sign-on to Remote Desktop, SharePoint, Teams, Tableau, Qlik, and line of business (LOB) applications.
Azure AD Application Proxy is:
Simple to use. Users can access your on-premises applications the same way they access Microsoft 365 and other SaaS apps integrated with Azure AD. You don't need to change or update your applications to work with Application Proxy.
Pptx viewer download microsoft. Secure. On-premises applications can use Azure's authorization controls and security analytics. For example, on-premises applications can use Conditional Access and two-step verification. Application Proxy doesn't require you to open inbound connections through your firewall.
Cost-effective. On-premises solutions typically require you to set up and maintain demilitarized zones (DMZs), edge servers, or other complex infrastructures. Application Proxy runs in the cloud, which makes it easy to use. To use Application Proxy, you don't need to change the network infrastructure or install additional appliances in your on-premises environment.
What is Application Proxy?Application Proxy is a feature of Azure AD that enables users to access on-premises web applications from a remote client. Application Proxy includes both the Application Proxy service which runs in the cloud, and the Application Proxy connector which runs on an on-premises server. Azure AD, the Application Proxy service, and the Application Proxy connector work together to securely pass the user sign-on token from Azure AD to the web application.
Docstar Outlook Add InApplication Proxy works with:
Web applications that use Integrated Windows Authentication for authentication
Web applications that use form-based or header-based access
Web APIs that you want to expose to rich applications on different devices
Applications hosted behind a Remote Desktop Gateway
Rich client apps that are integrated with the Microsoft Authentication Library (MSAL)
Application Proxy supports single sign-on. For more information on supported methods, see Choosing a single sign-on method.
Application Proxy is recommended for giving remote users access to internal resources. Application Proxy replaces the need for a VPN or reverse proxy. It is not intended for internal users on the corporate network. These users who unnecessarily use Application Proxy can introduce unexpected and undesirable performance issues.
Outlook Best Docs Mumbai 2020How Application Proxy worksOutlook Docs TranslatorThe following diagram shows how Azure AD and Application Proxy work together to provide single sign-on to on-premises applications.
After the user has accessed the application through an endpoint, the user is directed to the Azure AD sign-in page.
After a successful sign-in, Azure AD sends a token to the user's client device.
The client sends the token to the Application Proxy service, which retrieves the user principal name (UPN) and security principal name (SPN) from the token. Application Proxy then sends the request to the Application Proxy connector.
If you have configured single sign-on, the connector performs any additional authentication required on behalf of the user.
The connector sends the request to the on-premises application.
The response is sent through the connector and Application Proxy service to the user.
Note
Like most Azure AD hybrid agents, the Application Proxy Connector doesn't require you to open inbound connections through your firewall. User traffic in step 3 terminates at the Application Proxy Service (in Azure AD). The Application Proxy Connector (on-premises) is responsible for the rest of the communication.
Outlook Docs LoginComponentDescription
EndpointThe endpoint is a URL or an end-user portal. Users can reach applications while outside of your network by accessing an external URL. Users within your network can access the application through a URL or an end-user portal. When users go to one of these endpoints, they authenticate in Azure AD and then are routed through the connector to the on-premises application.
Azure ADAzure AD performs the authentication using the tenant directory stored in the cloud.
Application Proxy serviceThis Application Proxy service runs in the cloud as part of Azure AD. It passes the sign-on token from the user to the Application Proxy Connector. Application Proxy forwards any accessible headers on the request and sets the headers as per its protocol, to the client IP address. If the incoming request to the proxy already has that header, the client IP address is added to the end of the comma separated list that is the value of the header.
Application Proxy ConnectorThe connector is a lightweight agent that runs on a Windows Server inside your network. The connector manages communication between the Application Proxy service in the cloud and the on-premises application. The connector only uses outbound connections, so you don't have to open any inbound ports or put anything in the DMZ. The connectors are stateless and pull information from the cloud as necessary. For more information about connectors, like how they load-balance and authenticate, see Understand Azure AD Application Proxy connectors.
Active Directory (AD)Active Directory runs on-premises to perform authentication for domain accounts. When single sign-on is configured, the connector communicates with AD to perform any additional authentication required.
On-premises applicationFinally, the user is able to access an on-premises application.
Next stepsMicrosoft Docs OutlookTo start using Application Proxy, see Tutorial: Add an on-premises application for remote access through Application Proxy.