New-ExoPSSession : Connecting to remote server outlook.office365.com failed with the following error message : For more information, see the about_Remote_Troubleshooting Help topic.

Hi @Amin T,

From the screenshot you are using Exchange Online Powershell V2 module.

The cause of this issue may be Remote Powershell is being deprecated and disabled in your tenant.

For more details please refer to this blog:

Deprecation of Remote PowerShell in Exchange Online – Re-enabling or Extending RPS support

Please update to Exchange Online PowerShell V3 module to see if it can work for you.

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Hello there,

The error message you provided indicates that there is a problem connecting to the remote server "outlook.office365.com" using the New-ExoPSSession cmdlet. This cmdlet is used to create a remote PowerShell session to manage Exchange Online (Office 365) through PowerShell.

Here are some common reasons and troubleshooting steps to resolve this issue:

Check Internet Connectivity: Ensure that the machine where you are running the PowerShell script has an active internet connection. It needs to connect to Office 365 services via the internet.

Firewall and Proxy Settings: Check if there are any firewall rules or proxy settings that might be blocking the PowerShell session from establishing a connection to the Office 365 servers. If there are any such restrictions, ensure that they allow traffic to outlook.office365.com.

Module Installation: Make sure that you have installed the necessary PowerShell module to manage Exchange Online. The Exchange Online PowerShell module is required for the New-ExoPSSession cmdlet. You can download and install the module from the official Microsoft website.

Authentication Issues: Ensure that you are using the correct credentials to connect to Exchange Online. The account you are using must have the necessary permissions to access Exchange Online. It's a good practice to use an account with Global Administrator or Exchange Administrator roles.

I used AI provided by ChatGPT to formulate part of this response. I have verified that the information is accurate before sharing it with you.

Hope this resolves your Query !!

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