How to connect to exchange in domain from non-domain network

Thanks for the advice, but I've already done and checked all this a long time ago. That's why I wrote here to find a solution.

As a result, I found a solution.

you need to make the following settings in iis.
in the Default Web Site - PowerShell section
you need to select the "Authentication" item and enable Basic authentication in it

$username = "login@domain"  
$password = "P@$$w0rd" 
$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential($username, $securePassword)
$session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri http://exchange2019.domain.local/powershell/ -Authentication Basic -Credential $Cred -AllowRedirection
Import-PSSession $Session 
Get-mailbox

or via exchange server (10.10.0.42)

$username = "login@domain"  
$password = "P@$$w0rd" 
$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential($username, $securePassword)
Enter-PSSession -ComputerName 10.10.0.42 -Credential $cred
$username = "login@domain"  
$password = "P@$$w0rd" 
$securePassword = ConvertTo-SecureString $password -AsPlainText -Force
$cred = New-Object System.Management.Automation.PSCredential($username, $securePassword)
$session = New-PSSession -ConfigurationName Microsoft.Exchange -ConnectionUri http://exchange2019.domain.local/powershell/ -Authentication Basic -Credential $Cred -AllowRedirection
Import-PSSession $Session 
Get-mailbox