Pour configurer l'autoreply d'un user avec l'Exchange Shell:
Set-MailboxAutoReplyConfiguration -Identity user@domain -AutoReplyState Enabled -ExternalMessage $(get-content “C:\Scripts\OOF-message.txt”)
Contenu de OOF-message.txt (formatage HTML!):
<html><body>Madam, Sir,<br>Many thanks for your email.<br>This address is no longer valid. Please forward all messages to xxx<br>Best regards,<br></html></body>