One of my user sent me this message:
(read it then read my reply at end
*************
---------- Forwarded message ----------
Date: Wed, 22 Oct 2008 23:16:19 +0200
From: xx <x.x@???>
To: 'Leonardo Boselli' <leo@???>
Subject: I: Mail delivery failed: returning message to sender
Leonardo,
can you tell me why these outgoing message are blocked ?
It looks as if zen.spamhaus.org lock them... is a problem of the
recipient
here is the message :
-----Original message-----
From: Mail Delivery System [
mailto:Mailer-Daemon@dicea.unifi.it]
Sent: mercoledì 22 ottobre 2008 23.12
To: x.x@???
Oggetto: Mail delivery failed: returning message to sender
This message was created automatically by mail delivery software.
A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:
Robert.Raynal@???
SMTP error from remote mail server after end of data:
host mail.relexa-hotel.de [87.225.129.6]: 554 Service unavailable;
Client host [dipolo.dicea.unifi.it] blocked by zen.spamhaus.org;
http://www.spamhaus.org/query/bl?ip=79.18.133.80
reservierung.berlin@???
SMTP error from remote mail server after end of data:
host mail.relexa-hotel.de [87.225.129.6]: 554 Service unavailable;
Client host [dipolo.dicea.unifi.it] blocked by zen.spamhaus.org;
http://www.spamhaus.org/query/bl?ip=79.18.133.80
------ This is a copy of the message, including all the headers. ------
Return-path: <x.x@???>
Received: from host80-133-dynamic.18-79-r.retail.telecomitalia.it (bluetwo)
[79.18.133.80]
by dipolo.dicea.unifi.it with esmtpa (Exim 4.63 #1 (Debian))
id 1KskzO-0007Kq-W3; Wed, 22 Oct 2008 23:11:35 +0200
From: "x.x" <x.x@???>
To: <resxxx.berxxx@???>
Subject: booking confirmation
Date: Wed, 22 Oct 2008 23:11:24 +0200
Message-ID: <001501c9348a$bf2c4310$3d84c930$@marino@???>
........
*************
well, 79.18.133.80 is the IP address of his computer at home, he sent a
message with the office account after having been authenthicated on office
server (150.217.9.2).
It looks as mail.relaxaphotel.de refuse the message not because it does
not like the server that gave it the message, but simply because it does
that does not like one of previous servers, althouught the authentication
chain is continue !
How to avoid such problems ????