You must allow null sender, check you have that enabled in server.tab. "AllowNullSender" "1"
Dario -----Messaggio originale----- Da: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] = Per conto di [EMAIL PROTECTED] Inviato: mercoled=EC 16 marzo 2005 8.29 A: xmail@xmailserver.org Oggetto: [xmail] Re: R: Re: R: Re: R: Re: Problems with hotmail.com Please help me... I reply to a message coming from tiscali.nl, and this is the response of = the server... XMail bounce: [EMAIL PROTECTED];Error=3D[550-Callback setup = failed while verifying <[EMAIL PROTECTED]> 550-Called: 80.19.XXX.X 550-Sent: MAIL FROM:<> 550-Response: 501 Syntax error in return path 550-The initial connection, or a HELO or MAIL FROM:<> command was 550-rejected. Refusing MAIL FROM:<> does not help fight spam, disregards 550-RFC requirements, and stops you from receiving standard bounce 550-messages. This host does not accept mail from domains whose servers 550-refuse bounces. 550 Sender verify failed] How can I do to respond them?? Thank you. A. Polverini - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED] - To unsubscribe from this list: send the line "unsubscribe xmail" in the body of a message to [EMAIL PROTECTED] For general help: send the line "help" in the body of a message to [EMAIL PROTECTED]