Some users that have Microsoft 365 or Microsoft Office installed on their Windows 11 or Windows 10 computer may get the error message The connection to Microsoft Exchange is unavailable when setting up Outlook or adding a new email ID on their device. In this post, we offer the most suitable solutions to this issue. This error mainly occurs when you have added a @yourdomain.com type of email account to Microsoft Outlook, but you may use these suggestions even if you have not used such a form of an email address. Show
The full error message reads as follows;
This issue can occur if the user has an account at a third-party provider that uses the same email address and password that the user’s Office 365 account uses. If you’re getting The connection to Microsoft Exchange is unavailable error message when setting up Outlook on your Windows 11/10 PC, you can try our recommended solutions below in no particular order to resolve the issue on your system.
The first, three can be configured by the end-user, while 4 and 5 are only for Servers. Before you proceed with the solutions below, make sure your PC is not experiencing internet connectivity issue and that the Exchange server is not offline – if you are an IT or Exchange administrator, the Microsoft Remote Connectivity Analyzer can help you diagnose a number of issues, like Outlook account setup, connectivity issues, etc. Let’s take a look at the description of the process involved concerning each of the listed solutions. 1] Delete Default Profile
When you remove the profile, all offline cached content for its account will be removed. However, you can backup the OST profile to reuse it. When you relaunch Outlook, you will have to create a new profile, and then go through the setup process again. 2] Create a New Outlook ProfileIf you do not want to delete, you can create a new default profile. At the Mail Setup > Profiles section, you can click on the Add button, and then give a name to the profile. Next, you need to add the email accounts you want to add. Make sure to properly configure the email account, so the error doesn’t reappear. Also, make sure to set that as the default profile. 3] Update or create your Outlook profile with RPC encryptionMost of the users have all email accounts under one single profile. One of the email accounts may be having trouble with that is running Microsoft Exchange Server. These are usually corporate accounts that haven’t been configured properly.
It should fix the issue if it were because of RPC encryption error. 4] Disable the encryption requirement on all CAS serversThis part is specifically for IT admins who can disable encryption requirements. Microsoft warns that it should be only used where you cannot immediately deploy the necessary RPC encryption settings on your Outlook clients. Run the following command in the Exchange Management Shell: Set-RpcClientAccess –Server <Exchange server name> –EncryptionRequired:$FalseYou must run this cmdlet for all Client Access servers that are running Exchange Server 2010 or later versions. Rerun this command for each Exchange server that has the Client Access Server role. Also, make sure to disable RPC encryption, which we talked about in the above step. However, make sure to enable it back again after deployment with changes to the RPC requirement on Outlook. 5] Deploy a Group Policy setting to update existing Outlook profiles with RPC encryptionYou can also change RPC settings on the server-side by using Group Policy. Navigate to User Configuration > Administrative Templates > Microsoft Office “Version number” > Account Settings > Exchange. Locate policy Enable RPC encryption and disable it. 6] Run Microsoft Support and Recovery AssistantIf you have run into the connection to Microsoft Exchange is unavailable error when setting up Outlook on your Windows 11/10 PC, you can run the Microsoft Support and Recovery Assistant tool GUI version or the command-line version and see if the issue in focus is resolved. The SaRA tool can help you with Outlook if:
7] Create new alias for the Office 365 userThis solution requires you to create a new alias for the user in Office 365, and use it to set up Outlook. To carry out this task, do the following:
Now, instead of the user’s email address use the alias that you just created to set up Outlook. During the Outlook setup process and you’re prompted again to enter credentials, use the user’s actual Office 365 email address. 8] Change the user name or passwordThis is a simple solution to the issue in highlight, which involves changing the user name or password of the user’s Office 365 account or of the user’s third-party account so that it is unique for the user’s Office 365 account. 9] Restore Registry settingsThis is a bit tricky, but it would be easier if you follow all the steps carefully. To perform this step, you need two computers running the same Windows OS and version of Outlook. Now open the Registry editor on the other computer where Outlook is working smoothly. Navigate to the following path: HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell FoldersRight-click on the User Shell Folders and select Export. Choose a location where you want to save the .reg file and save it accordingly. Now copy the file to the computer on which you are facing issues. Now, press Win+R, type regedit to open the Registry Editor. Then, click on File > Import. Select the .reg file that you have copied recently to add the information to your system. Remember to backup Registry files and create a system restore point first. We hope these methods helped you to resolve Outlook-connected issues with Microsoft Exchange. How do I fix Outlook The connection to Microsoft Exchange is unavailable?To fix The connection to Microsoft Exchange is unavailable error on your PC, try the following suggestions:
How do I connect Microsoft Exchange to Outlook?To set up or connect Microsoft Exchange server to Outlook, follow these steps:
How do I change Microsoft Exchange from Online to Microsoft Exchange?You need to turn off Cached Exchange Mode, but keep in mind Outlook will be slower to process changes in the Global Address List, or will be unable to find certain emails when you search for them. Follow these instructions:
Why is Outlook disconnected from Exchange Server?One possible cause why Outlook is disconnected from Exchange Server is that you’re using Outlook and you disabled the Encrypt data between Microsoft Office Outlook and Microsoft Exchange profile setting. The default configuration for Exchange Server 2013 requires RPC Encryption from the Outlook client. This prevents the client from being able to connect. Why is my Outlook not connecting to the Exchange Server?Ensure Outlook is online
This is important because, in the offline mode, Outlook can't connect to the Microsoft Exchange servers, and thus, will throw the “Outlook cannot connect to server” error. To fix this: Go to the Send/Receive tab in Outlook. Look for an option called “Work Offline” and click it.
How do I fix Microsoft Outlook Cannot start the problem?Choose Start > Run, and in the Open box, type Outlook. ... . In the upper-left corner of Outlook, choose File > Options > Add-ins.. Select the check box next to an add-in you want to re-enable, and then choose OK.. Repeat all steps until you've re-enabled all of the original add-ins and revealed the source of the error.. How do I force Outlook to connect to Exchange Server?Step 1: Open Outlook. Step 2: Click on the "File">" Info"> Account and Social Network Settings">" Account settings". Step 3: Select your account and click on the "Change> "More Settings">" Connection" tab. Step 4: Under Outlook Anywhere, choose the "Connect to Microsoft Exchange using HTTP" option.
How do you fix Cannot start Microsoft Outlook Cannot open Outlook window the set of folders Cannot be opened the attempt to log on to Microsoft Exchange has failed?5 Fast Tips to Fix "Cannot Start Microsoft Outlook" Error. 1 Turn off Compatibility Mode. ... . 2 Start Outlook in Safe Mode. ... . 3 Recover Navigation Pane configuration file. ... . 4 Repair your Outlook PST file using an Inbox Repair tool. ... . 5 Create a new Outlook profile and import data from the old PST file.. |