```powershell
<#
.SYNOPSIS
    Automated installation and configuration script for hMailServer
.DESCRIPTION
    This PowerShell script automates the installation and initial configuration of hMailServer,
    including creating a domain, user account, and configuring SMTP settings with SSL/TLS.
.NOTES
    File Name      : install-hmailserver.ps1
    Prerequisite   : PowerShell 5.1+, Windows 10/11 or Windows Server 2016+
#>

# 1. Download the latest version of hMailServer from official website
Write-Host "Downloading latest hMailServer installer..."
$downloadUrl = "https://www.hmailserver.com/download"
$tempPath = $env:TEMP
$installerPath = "$tempPath\hmailserver-latest.exe"

try {
    # Get the latest download URL from the website (this may need adjustment if they change their structure)
    $response = Invoke-WebRequest -Uri $downloadUrl -UseBasicParsing
    $downloadLink = ($response.Links | Where-Object { $_.href -like "*hMailServer*" -and $_.href -match "\.exe$" } | Select-Object -First 1).href
    
    if (-not $downloadLink) {
        throw "Could not find download link on hMailServer website"
    }

    # Complete the URL if it's relative
    if (-not $downloadLink.StartsWith("http")) {
        $downloadLink = "https://www.hmailserver.com$downloadLink"
    }

    Invoke-WebRequest -Uri $downloadLink -OutFile $installerPath -UseBasicParsing
    Write-Host "Download completed successfully."
}
catch {
    Write-Host "Error downloading hMailServer: $_" -ForegroundColor Red
    exit 1
}

# 2. Install hMailServer silently with default settings
Write-Host "Installing hMailServer..."
try {
    $installArgs = "/VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP- /LOG=`"$tempPath\hmailserver_install.log`""
    Start-Process -FilePath $installerPath -ArgumentList $installArgs -Wait
    
    # Wait for service to be installed and started
    Start-Sleep -Seconds 10
    Write-Host "Installation completed successfully."
}
catch {
    Write-Host "Error installing hMailServer: $_" -ForegroundColor Red
    exit 1
}

# 3-7. Configure hMailServer using COM automation
Write-Host "Configuring hMailServer..."
try {
    # Load hMailServer COM objects
    $hMailApp = New-Object -ComObject hMailServer.Application
    
    # Authenticate with the hMailServer administrator password (blank by default after install)
    $hMailApp.Authenticate("Administrator", "")
    
    # 3. Create a new domain example.com
    $domain = $hMailApp.Domains.Add()
    $domain.Name = "example.com"
    $domain.Active = $true
    $domain.Save()
    Write-Host "Created domain: example.com"
    
    # 4. Add a user test@example.com with password "Test1234"
    $account = $domain.Accounts.Add()
    $account.Address = "test@example.com"
    $account.Password = "Test1234"
    $account.Active = $true
    $account.MaxSize = 100  # 100MB mailbox size
    $account.Save()
    Write-Host "Created user: test@example.com"
    
    # 5. Configure SMTP to allow sending emails on port 587 with SSL/TLS
    $tcpPort = $hMailApp.Settings.TCPIPPorts.Add()
    $tcpPort.Address = "0.0.0.0"  # Listen on all interfaces
    $tcpPort.PortNumber = 587
    $tcpPort.Protocol = 1  # SMTP
    $tcpPort.ConnectionSecurity = 2  # SSL/TLS
    $tcpPort.Save()
    
    # Enable SMTP authentication
    $hMailApp.Settings.SMTP.EnableAUTH = $true
    
    # 6. Enable logging for SMTP activity
    $hMailApp.Settings.Logging.Enabled = $true
    $hMailApp.Settings.Logging.LogSMTP = $true
    
    # Save all settings
    $hMailApp.Settings.Save()
    Write-Host "SMTP configured on port 587 with SSL/TLS and logging enabled."
    
    # Restart hMailServer service to apply all changes
    Restart-Service -Name "hMailServer" -Force
    Write-Host "hMailServer service restarted to apply changes."
}
catch {
    Write-Host "Error configuring hMailServer: $_" -ForegroundColor Red
    exit 1
}

Write-Host "`nInstallation and configuration completed successfully!" -ForegroundColor Green
Write-Host "hMailServer is now running with:" -ForegroundColor Cyan
Write-Host "- Domain: example.com" -ForegroundColor Cyan
Write-Host "- User: test@example.com (password: Test1234)" -ForegroundColor Cyan
Write-Host "- SMTP on port 587 with SSL/TLS" -ForegroundColor Cyan
Write-Host "- SMTP logging enabled" -ForegroundColor Cyan
```
___METADATA_START___
{"isNew":true,"userName":"testng"}
___METADATA_END___