Modify users addresses via powershell

Hi StefanoC66 please check this:
# Path to the CSV file containing the domains to be removed
$domainsCsvPath = "C:\path\to\domains.csv"

# Load the domains to be removed
$domainsToRemove = Import-Csv -Path $domainsCsvPath | Select-Object -ExpandProperty domain

# Get all mailboxes
$mailboxes = Get-Mailbox -ResultSize Unlimited

foreach ($mailbox in $mailboxes) {
# Get all email addresses for the mailbox
$emailAddresses = $mailbox.EmailAddresses | Where-Object { $_ -like 'SMTP:*' } | ForEach-Object { $_.SmtpAddress }

# Filter out the email addresses that belong to the domains to be removed
$filteredEmailAddresses = $emailAddresses | Where-Object {
$domain = $_.Split("@")[-1]
-not ($domainsToRemove -contains $domain)
}

# Update the mailbox with the filtered email addresses
if ($filteredEmailAddresses.Count -ne $emailAddresses.Count) {
Set-Mailbox -Identity $mailbox.Identity -EmailAddresses ($filteredEmailAddresses -join ",")
Write-Host "Updated email addresses for mailbox: $($mailbox.Identity)"
}
}