$Destinataires = "hubert.cornet-ext@saint-maclou.com","thedjinhn@gmail.com"
[string[]]$To  = $Destinataires.Split(',')
$From          = "POWERSHELL@saint-maclou.com"
$Subject       = "Exemple 3"
$BODY          = "Some important plain text!"
$SmtpServer    = "RELAISSMTP.FR.DGS.GROUP"
$Port          = "25"
$Attachments   = ""
$Bcc           = ""
$Cc            = ""
$Encoding      = ""
$Priority      = "Normal"

Send-MailMessage -To $To -From $From -Subject $Subject -Body $BODY -SmtpServer $SmtpServer -Port $Port -BodyAsHtml -Priority $Priority #-Bcc $Bcc -Cc $Cc -Encoding $Encoding -Attachments $Attachments