Hi, I have a private network with Microsoft Exchange 2000 :( I have a webserver with qmail :) My private domain is localnet.ndsoftware.net (you can't resolve it from internet), and my internet domain is ndsoftware.net. Now how i need to configure QMail for it recevied the exchange message and not send error because localnet.ndsoftware.net is not resolved ? Have you got many URL for the mixed network with Qmail and Exchange ? Thanks very much. Nicolas DEFFAYET, NDSoftware http://www.ndsoftware.net - [EMAIL PROTECTED] France: Tel +33 671887502 - Fax N/A UK: Tel +44 8453348750 - Fax +44 8453348751 USA: Tel N/A - Fax N/A --- Note: All HTML email sent to me can be deleted for security reasons.