Re: [EXIM] Exim 1.82 and RFC2317

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Autor: Bruno Vuillemin
Fecha:  
A: exim-users
Cc: Bruno.Vuillemin
Asunto: Re: [EXIM] Exim 1.82 and RFC2317

Hello

Thanks for your remarks ...

According to your mails I did the following on the primary MX running exim.
---
>What OS is the box running exim using ?

$ uname -a
SunOS siufuxsun03 5.6 Generic sun4u sparc SUNW,Ultra-1
$

So exim runs on Solaris 2.6
---
$ telnet 127.0.0.1 25
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
220 siufuxsun03.unifr.ch ESMTP Exim 1.82 #4 Mon, 17 Aug 1998 16:46:46 +0200
quit
221 siufuxsun03.unifr.ch closing connection
Connection closed by foreign host.
$

Exim version is 1.82
---

According to Philip Hazel's test.
>exim -bh 195.141.72.66
>exim abandoned: unknown, malformed, or incomplete option -bh



hmm I had a look on the doc (1.82): -bh can't be seen.
---

>What reolver libraries is it using ?

$ldd exim
        libsocket.so.1 =>        /usr/lib/libsocket.so.1
        libnsl.so.1 =>   /usr/lib/libnsl.so.1
        libkstat.so.1 =>         /usr/lib/libkstat.so.1
        libresolv.so.2 =>        /usr/lib/libresolv.so.2
        libc.so.1 =>     /usr/lib/libc.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1
        libmp.so.2 =>    /usr/lib/libmp.so.2
$ 


This should show the resolver library version.
---
>Then if you built against a known good resolver library (and recommend
>that libbind from 8.1.2 or current should be used for best performance),


hmm no libbind here.
but in that case can this be the problem ?
Because nslookup on the same computer retrieve the name.

$ ldd nslookup
        libresolv.so.2 =>        /usr/lib/libresolv.so.2
        libsocket.so.1 =>        /usr/lib/libsocket.so.1
        libnsl.so.1 =>   /usr/lib/libnsl.so.1
        libc.so.1 =>     /usr/lib/libc.so.1
        libdl.so.1 =>    /usr/lib/libdl.so.1
        libmp.so.2 =>    /usr/lib/libmp.so.2
$ 
nslookup  195.141.72.66
Server:  siuftesun02.unifr.ch
Address:  134.21.1.31


Name:    netra.rega-sense.ch
Address:  195.141.72.66
Aliases:  66.72.141.195.in-addr.arpa


$
nslookup retrieve the name so it works with libresolv.so.2

You can note that there is an alias in the returned list
and not in the one returned after querying a more
conventional computer (www.switch.ch for example,
a class C address if I am right)

nslookup 130.59.10.30
Server: siuftesun02.unifr.ch
Address: 134.21.1.31

Name:    scsnms.switch.ch
Address:  130.59.10.30


$


----
>A work around for this is to remove all * entries in the sender_*reject
>entries or add "+allow_unknown" to the list.


I feel a bit reluctant to do that unless as a temporary measure to check
with the person from rega-sense.ch that the problem is directely connected
to that. I am affraid that other restrictions in the configuration file
would be shuted down too.

On the other side I should probably upgrade to 2.0x
as soon as possible ... Now the question is : when
is it possible ? :-) Nights tend to be too often too short in this job :-)

If a "reasonable" temporary workaround were available,
I am sure I'd like it :-) Well may be the +allow_unknown ....

>If an RFC comes out in March, one can hardly expect the whole world to have
>upgraded everything to support it by August.


Of course !

Thanks again for your comments
Bruno Vuillemin


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