Usually, a connection issue between Microsoft Exchange Servers and Outlook on your PC gives the error message that says Microsoft Exchange is Unavailable. Below in the article, we have further discussed about the Microsoft Exchange Servers and why it’s unavailable.
What is Microsoft Exchange, And Why is it Unavailable on Outlook?
Microsoft Exchange is a groupware server that offers email hosting, and calendaring servers, for corporate users. Outlook was designed so that users could connect to Exchange servers and collect email from the server.Outlook and Exchange are designed to work together. Therefore, if some complication arises when connecting with Microsoft Exchange, you are likely to get a Microsoft Exchange unavailable error.
How to Fix Microsoft Exchange Unavailable Error?
Before we jump into the solutions, make sure you perform general fixes. These fixes include, reopening the application, restarting the PC and checking internet connection. Since it is a connection issue, the issue is very likely to be with your computer.Therefore first, let us start by flushing the DNS.
Flush DNS
When you flush the DNS, the system clears any IP addresses and records of DNS from the cache. Cache memory filled with multiple IP addresses may cause issues when Outlook tries to connect with Microsoft Exchange Servers. To fix this, we recommend that you perform a DNS flush.
Disable RPC encryption
The RCP or Remote Procedure call is a Microsoft protocol that allows Outlook to access Microsoft Exchange servers. The encryption is done so that hackers cannot access readable emails when Outlook tries to access confidential information from the exchange servers.Due to encrypting errors, Outlook may face issues connecting with the exchange servers. You can disable RPC encryption on the server side to see if it fixes the issue.You may think that disabling RPC encryption will make your data vulnerable, but Microsoft also has several other encryption layers that secure your data.Follow the steps mentioned below to disable RPC encryption.Group Policy is not available on Windows Home Edition. To access Group Policy in Windows Home Edition, you need to enable it first.
Restart Microsoft Exchange Service
Outlook requires multiple Microsoft Exchange Services to run in the background. Sometimes, necessary services may not always start correctly, resulting in Outlook giving an error message saying, “connection to Microsoft Exchange is unavailable.”To fix this, you can try restarting all Microsoft Exchange Services.There may be more than one Microsoft Exchange Services running, make sure that you restart them all.
Delete Outlook Profile
The problem that you face may be due to some error when configuring your Outlook profile. If this is true, you can delete your current profile and restart Outlook. Restarting Outlook will automatically create a new profile.
Create a New Profile
You can also create a new profile if deleting a profile does not work. To create a new profile,
Repair Office
Since Outlook is a part of the Microsoft Office Package, you can try repairing Office to check if it fixes any issues. Repairing the Office compares local installation files with its manifest and repairs any corrupt application files, registry values, and dll registration. To repair the Office package,
Import User Shell Folder
Wrong configuration on the Windows registry may cause the entire Operating System to malfunction. One such setting in the Registry that may cause conflicts with Outlook is the User Shell Folder. The User Shell folder contains important Outlook data that the OS uses to connect to the Microsoft exchange server.Any changes to the registry may cause the entire OS to malfunction. Therefore before we start, make sure you backup your current registry settings.To fix this, you need to export the User Shell Folder from a computer that does not give any error message and import it to your PC.
