Clear-Host

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

#Variables Mail
$fromaddress = "expediteur@mondomaine.com"
$toaddress = "cible@mondomaine.com"
$Subject = "Test" 
$body = "Test"
$attachment = "D:\monfichier.xlsx" 
$smtpserver = "smtps.mondomaine.com" 

#Envoi Mail
#$message = new-object System.Net.Mail.MailMessage
#$message.From = $fromaddress 
#$message.To.Add($toaddress)
#$message.IsBodyHtml = $True 
#$message.Subject = $Subject 
#$attach = new-object Net.Mail.Attachment($attachment) 
#$message.Attachments.Add($attach) 
#$message.body = $body 
#$SMTPClient = new-object Net.Mail.SmtpClient($smtpserver, 587) 
$SMTPClient = New-Object System.Net.Mail.SmtpClient($smtpServer, 587)
$SMTPClient.EnableSsl = $true
#$SMTPClient.Credentials = New-Object System.Net.NetworkCredential('monlogin@mondomaine.com', 'monmotdepasse')
$SMTPClient.Credentials = New-Object System.Net.NetworkCredential('monlogin@mondomaine.com', 'monmotdepasse')

#$SMTPClient.Send($message)
$SMTPClient.Send($fromaddress, $toaddress, $Subject, $body)