look at the headers of my message:
_______________________________________
Received: from mail.thelounge.net (mail.thelounge.net [91.118.73.15])
by english-breakfast.cloud9.net (Postfix) with ESMTP id B37E4341C53
for <postfix-users@postfix.org>; Sun, 23 Sep 2012 15:16:14 -0400 (EDT)
* mail.thelounge.net = smtp_helo_name
* mail.thelounge.net = PTR from DNS (resloved by english-breakfast.cloud9.net)
* 91.118.73.15 connected to english-breakfast.cloud9.net
these headers are the one from english-breakfast.cloud9.net (destination server)
they should always match and are depending heavily on the DNS
of your ISP for your ip-address and one is the HELO-name the
delivering server sends in the initial communication
_______________________________________
Received: from srv-rhsoft.rhsoft.net (openvpn-rh.thelounge.net [10.0.0.241])
(using TLSv1
with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client
certificate requested)
by mail.thelounge.net (THELOUNGE MTA) with ESMTPSA id 3XPyvK5L5bz34
for <postfix-users@postfix.org>; Sun, 23 Sep 2012 21:16:13 +0200 (CEST)
* srv-rhsoft.rhsoft.net = smtp_helo_name (thanks to thunderbird, does not
matter)
* openvpn-rh.thelounge.net = PTR from DNS (as you see this is not a public
thing)
* 10.0.0.241 = IP of my client (this is also not a public thing)
these headers are the one from our mail-server
_______________________________________
Am 23.09.2012 21:16, schrieb Reindl Harald:
> * please do not reply off-list
> * please provide real log without "smtp.ip.add.ress"
> * please do not top-post (i refuse to fix the thread)
>
> usually your host has a PUBLIC hostname
> usually your host is using this as myhostname = HELO
> usually the PTR to your ip should have the same name
> usually you need to have a valid PTR
>
> these are the only things you should care on a public mail-server
> ________________
>
> with "mail2.localdomain" as HELO as example we would never
> accept any message from you because properly configured
> mailservers would not do this
>
> smtpd_helo_restrictions:
> * reject_non_fqdn_helo_hostname
> * reject_invalid_helo_hostname
> * reject_unknown_helo_hostname
>
> smtpd_recipient_restrictions:
> * reject_invalid_hostname
> * reject_unknown_reverse_client_hostname
> ________________
>
> [harry@srv-rhsoft:~]$ nslookup mail.thelounge.net 8.8.8.8
> Server: 8.8.8.8
> Address: 8.8.8.8#53
> Non-authoritative answer:
> Name: mail.thelounge.net
> Address: 91.118.73.15
>
> [harry@srv-rhsoft:~]$ nslookup 91.118.73.15 8.8.8.8
> Server: 8.8.8.8
> Address: 8.8.8.8#53
> Non-authoritative answer:
> 15.73.118.91.in-addr.arpa name = mail.thelounge.net.
>
>
> Am 23.09.2012 20:59, schrieb Андрей Клаус:
>> Thanks to Wietse Venema for great example and for your time and for
>> the links. Looks understandable. I think it should solve my problems.
>> Will try it.
>> Thanks to Noel Jones for poining me to
>> sender_dependent_default_transport_maps. Sorry, i'm a newbe and didnt
>> see what did you mean.
>>
>> Thanks to Reindl Harald for the answer, but i just have changed
>> $myhostname to mail2.localdomain. Sent email to myself. And see now
>> "Received: from mail2.localdomain ([smtp.ip.add.ress]) by
>> mx.google.com ... "
>> Nobody else except posfix knows name "mail2.localdomain" in my system
>> at all. Because i just changed only one string in main.cf. So, it is
>> exactly postfix who says to mx.google.com that postfixbox is
>> mail2.localdomain.
>> I think here is something like small missunderstanding ... may be it
>> is because i explained situation in wrong way because i'm a newbe.
>>
>> Thanks to everybody again,
>> Andrey.
>>
>> 2012/9/23 Reindl Harald <h.rei...@thelounge.net>:
>>>
>>>
>>> Am 23.09.2012 14:35, schrieb Андрей Клаус:
>>>> About domain name - the thing is that right now i see exactly the next
>>>> message (except ip address) "Received: from mail.localdomain
>>>> ([ip.add.re.ss]) by mx.google.com..". And "mail.localdomain" is a
>>>> local alias.
>>>
>>> Reveived is generated from DNS and not from any postfix config
>>> it has even nothing to do with the first hop
>>> as the name RECEIVED says it is added by the receiver
>>>
>>>> So, it cant be resolved from external network.
>>>
>>> who cares?
>>>
>>> it is a LOCAL machine
>>> what and why should any WAN server resolve here?
>>>
>>>> So, it cant depend from real ip address. So, only postfix can say to
>>>> mx.google.com that postfixbox is "mail.localdomain".
>>>
>>> postfix does not say anything
>>>
>>> mx.google.com is not interested in your received
>>> hesder froma local hop and is adding his own with
>>> the PTR of your ip-address
>>>
>>> your postfix configuration is not involved in this game
>>>
>>>> And i think postfix says it's $myhostname here.
>>>
>>> but you are wrong
>>>
>>>> I understand that it is really not a big thing, but i just would
>>>> like to use respective domain names for this, if there is a way
>>>
>>> so configure your DNS server
>
--
Reindl Harald
the lounge interactive design GmbH
A-1060 Vienna, Hofmühlgasse 17
CTO / CISO / Software-Development
p: +43 (1) 595 3999 33, m: +43 (676) 40 221 40
icq: 154546673, http://www.thelounge.net/
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