Re: [exim] Help in interpetting a log line

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著者: Christiaan den Besten
日付:  
To: Alain Williams
CC: Exim Users
題目: Re: [exim] Help in interpetting a log line
Hi !

---
> 2) fix my machine so that in acl_check_rcpt I have:
>     require verify = sender/callout=mailfrom=postmaster@$qualify_domain

---

That's not possible is it? I wanted to use the same feature
(mailfrom=) in sender verification to use something else then the
bounce user in de 'mail from', but this option only seems to be
available in 'header_sender' when checking senders ..

Why? ... (why can't it be used for 'verify = sender/
callout=mailfrom=blabla....' )

Yours,
Chris

On Oct 22, 2008, at 1:04 PM, Alain Williams wrote:

> Hi,
>
> I am trying to understand the reason why exim has decided to fail
> sender verification, so that I can say something to the sys admin at
> the
> sending site. The 2 lines in the exim log file are below, I have
> difficulty understanding them because there are so many
> different machines mentioned. I have not tried to obscure the sites
> since that might destroy the understanding.
>
>     2008-09-26 10:40:09 H=mr40-iz.mailpoalim.co.il  
> (mr40.mailpoalim.co.il) [212.68.154.40] sender verify fail for <miki.nachmani@??? 
> >: response to "MAIL FROM:<>" from mr51-iz.mailpoalim.co.il  
> [212.68.154.51] was: 501 Empty sender address is not allowed
>     2008-09-26 10:40:09 H=mr40-iz.mailpoalim.co.il  
> (mr40.mailpoalim.co.il) [212.68.154.40]  
> F=<miki.nachmani@???> rejected RCPT <a.trager-lewis@??? 
> >: Sender verify failed

>
> So, I deduce:
> * mr40-iz.mailpoalim.co.il is the verified name of the machine that
> connecte to my client's server, it has the IP address 212.68.154.40
> * mr40.mailpoalim.co.il is the name that was given in the HELO line
> * mr51-iz.mailpoalim.co.il is 212.68.154.51, this is the first
> listed MX for bhimail.co.uk
>
> It is not clear to me which machine is saying: ''Empty sender
> address is not allowed'' - I think mr51-iz.mailpoalim.co.il
>
> I think that what is happening is that exim is connecting to mr51- 
> iz.mailpoalim.co.il to see if it will accept mail to miki.nachmani@???
> and as part of it sends:
>     MAIL FROM:<>
> which mr51-iz.mailpoalim.co.il objects to. Which suggests that that  
> machine will not accept bounces.

>
>
> So, I can either:
>
> 1) tell the sysadmins that look after mr51-iz.mailpoalim.co.il to
> fix their machines
>
> 2) fix my machine so that in acl_check_rcpt I have:
>     require verify = sender/callout=mailfrom=postmaster@$qualify_domain

>
> 3) fix my machine as (2) but only for certain domains:
>
>     require sender_domains = lsearch;/etc/exim/WontTakeBounces
>         verify = sender/callout=mailfrom=postmaster@$qualify_domain

>
>     require sender_domains = !lsearch;/etc/exim/WontTakeBounces
>         verify = sender/callout=mailfrom=postmaster@$qualify_domain

>
>
> Which would be better and why ?
>
> --
> Alain Williams
> Linux/GNU Consultant - Mail systems, Web sites, Networking,
> Programmer, IT Lecturer.
> +44 (0) 787 668 0256 http://www.phcomp.co.uk/
> Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php
> Past chairman of UKUUG: http://www.ukuug.org/
> #include <std_disclaimer.h>
>
> --
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