Le 16/11/2010 19:58, Chris G a écrit :
On Tue, Nov 16, 2010 at 01:47:26PM -0500, Victor Duchovni wrote:
On Tue, Nov 16, 2010 at 06:39:49PM +0000, Chris G wrote:

It sounds like you have both Postfix and Sendmail on the same systems,
and perhaps confused about which MTA is handling which mail.

When I say 'sendmail' I just mean the postfix executable of that name
which is used by mutt (amoung others) to send mail from the system.
I have enver had 'real' sendmail installed on these systems.

What logs on the client provide supporting evidence that Postfix
handled the mail from Mutt? That's the first place to look. Not on
the receiving server. Please post the client-side logs.

Here's what appears in mail.log when I send a mail from mutt on
dps.zbmc.eu which is 192.168.1.2 :-

     Nov 16 18:53:31 dps postfix/pickup[2366]: A6AC610034B: uid=1000 
from=<chris>
     Nov 16 18:53:31 dps postfix/cleanup[2707]: A6AC610034B: 
message-id=<20101116185331.ga2...@dps.zbmc.eu>
     Nov 16 18:53:31 dps postfix/qmgr[1124]: A6AC610034B: 
from=<ch...@dps.zbmc.eu>, size=459, nrcpt=1 (queue active)
     Nov 16 18:53:32 dps postfix/smtp[2709]: A6AC610034B: to=<ch...@halon.org.uk>, 
relay=zbmc.eu[84.45.228.40]:25, delay=0.49, delays=0.31/0.01/0.04/0.13, dsn=5.7.1, 
status=bounced (host zbmc.eu[84.45.228.40] said: 554 5.7.1<ch...@halon.org.uk>: Relay 
access denied (in reply to RCPT TO command))
     Nov 16 18:53:32 dps postfix/cleanup[2707]: 22BF9100354: 
message-id=<20101116185332.22bf9100...@dps.zbmc.eu>
     Nov 16 18:53:32 dps postfix/bounce[2710]: A6AC610034B: sender non-delivery 
notification: 22BF9100354
     Nov 16 18:53:32 dps postfix/qmgr[1124]: 22BF9100354: from=<>, size=2280, 
nrcpt=1 (queue active)
     Nov 16 18:53:32 dps postfix/local[2711]: 22BF9100354: 
to=<ch...@dps.zbmc.eu>, relay=local, delay=0.33,
     delays=0.27/0.01/0/0.05, dsn=2.0.0, status=sent (delivered to command: procmail -a 
"$EXTENSION")
     Nov 16 18:53:32 dps postfix/qmgr[1124]: A6AC610034B: removed
     Nov 16 18:53:32 dps postfix/qmgr[1124]: 22BF9100354: removed



so, your client says
        relay=zbmc.eu[84.45.228.40]
and your server says
        reject: RCPT from unknown[84.45.228.40]

So your client and server have the same IP. This means that they run on the same box. is it so? if so, why didn't you say it before?

if the client and server run on the same box, then you either configure the client to use 127.0.0.1 for routing email or you add whatever IP the client uses to mynetworks.


I'm pretty certain that the message is only getting as far as
mws.zbmc.eu (which is the relayhost that dps.zbmc.eu should be using)
and it there that it's being rejected.


stop talking about domain names. talk about IP addresses and networks. explain how the client and the server are connected and how the client is configured to relay to server, ... and please: all that using IP addresses.

Wrong question. The right question is:

     - Now that I know that the traffic is coming from the reported
       IP address, how do I identify the sending client and either
       allow it to send from that IP or reconfigure it to use a different
       IP address.

I'm pretty sure I know the client, it's dps.zbmc.eu, and I want to
"reconfigure it to use a different IP address.".  I think that's the
question I'm looking for an answer to.

Well, this is a client-side question, and you are looking on the server.
So now focus on the client.

--
        Viktor.


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