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

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