Ok Wietse but the remote server (futurviaggi.it) is a server hosting in aruba.it, I can not contact with them. I have a problem because this server outside my country...
you think of anything else I can do, Do you see my configuration? It's ok Regards and Thank You very much -----Mensaje original----- De: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] En nombre de Wietse Venema Enviado el: martes, 17 de julio de 2012 16:48 Para: Postfix users Asunto: Re: invalid domain (in reply to MAIL FROM command)) Tomas Garijo (Click): > Ok thank you, > > for other domains outside , my smtp server sends > "from=<tgar...@clickonline.es>" does send <> but for domain > futturviaggi.it yes > > what happens? RFC 5321 Section 6.1, "Reliable Delivery and Replies by Email" says this: If there is a delivery failure after acceptance of a message, the receiver-SMTP MUST formulate and mail a notification message. This notification MUST be sent using a null ("<>") reverse-path in the envelope. The recipient of this notification MUST be the address from the envelope return path (or the Return-Path: line). However, if this address is null ("<>"), the receiver-SMTP MUST NOT send a notification. You need to find out why YOUR MACHINE could not deliver some email messages. Also, you need to tell the remote mail server that they don't correctly implement SMTP, by rejecting mail from <>. Wietse
