ccepted the email. I
see lots of spam email rejected thanks to this.
Now that I'm here, I would like to add:
I think that what confused me is that Postfix said:
NOQUEUE: reject: RCPT from unknown[188.39.73.166]: 450 4.7.25 Client host
rejected: cannot find your hostname, [188.39.73.166]; fr
Carles Pina i Estany:
> > You can't use reject_unknown_client_hostname for that
> > site, if you want to receive their email.
>
> I think that it might be possible to white list a client?
> Described in:
> https://serverfault.com/questions/202978/can-i-make-an-exception-to-reject-unknown-client-h
Hi Wietse,
On Mar/06/2022, Wietse Venema wrote:
> Carles Pina i Estany:
> > root@mail:~# nslookup 188.39.73.166
> > 166.73.39.XXX.in-addr.arpa name = mailcluster.zen.co.uk.
>
> That is sufficient to satisfy reject_unknown_reverse_client_hostname.
>
> But you have also configured reject_unknow
oritative answer:
Name: mail-ed1-f41.google.com
Address: 209.85.208.41
Do you think that the error "Client host rejected: cannot find your
hostname" is because the IP->hostname and hostname->IP lookups are not
matching?
I think that it should have written "Client host reje
Carles Pina i Estany:
> root@mail:~# nslookup 188.39.73.166
> 166.73.39.XXX.in-addr.arpaname = mailcluster.zen.co.uk.
That is sufficient to satisfy reject_unknown_reverse_client_hostname.
But you have also configured reject_unknown_client_hostname. That
requires that mailcluster.zen.co.uk res
I think the answer is in your question ?
Prefix 188. vs prefix 166. ?
Plus neither 188. or 166. are present in a forward lookup for
mailcluster.zen.co.uk ?
That's some truly messed up DNS you've got there ?
--- Original Message ---
>
> I get:
>
> root@mail:~# nslookup 188.39.73.166
>
I think the answer is in your question ?
Prefix 188. vs prefix 166. ?
Plus neither 188. or 166. are present in a forward lookup for
mailcluster.zen.co.uk ?
That's some truly messed up DNS you've got there ?
--- Original Message ---
>
> I get:
>
> root@mail:~# nslookup 188.39.73.166
>
.XXX]: 450 4.7.25 Client host rejected: cannot find your
hostname, [188.39.73.XXX]; from= to= proto=ESMTP
helo=
(all are correct spam with one exception).
This should be ok but if I do (in the same system):
nslookup 188.39.73.XXX
I get:
root@mail:~# nslookup 188.39.73.166
166.73.39.XXX.in
Noel Jones put forth on 8/27/2010 8:58 AM:
> Yes, this was rejected by reject_unknown_client_hostname.
>
> Yes, it appears the client's DNS is working correctly /now/.
>
> The mail was deferred with a 450 code. This implies that there was a
> temporary DNS error of some type. Just because dig
lient host rejected: cannot find
your hostname, [67.210.171.12]; from=
to= proto=ESMTP helo=
However, the DNS config of the sender's mta looks good. Here are the
reverse resolution and the forward resolution:
bd...@bdube-laptop:~$ host 67.210.171.12
12.171.210.67.in-addr.arpa domain na
On 2010-08-27 12:15 AM, Benoît Dubé wrote:
> Aug 26 04:05:49 courriel postfix/smtpd[17755]: NOQUEUE: reject: RCPT
> from unknown[67.210.171.12]: 450 4.7.1 Client host rejected: cannot
> find your hostname, [67.210.171.12]; from=
> to= proto=ESMTP helo=
reject_unknown_client is kno
Hi,
I'm using zimbra with Postfix as MTA.
I got the following error message which indicate mail rejection based on
hostname not find.
Aug 26 04:05:49 courriel postfix/smtpd[17755]: NOQUEUE: reject: RCPT
from unknown[67.210.171.12]: 450 4.7.1 Client host rejected: cannot find
your hos
On 07/26/2010 10:48 AM, Bernard T. Higonnet wrote:
I'm having a terrible problem with
Client host rejected: cannot find your hostname
That means the connecting IP has no PTR record and you have included
reject_unknown_client_hostname in your restrictions.
A simple "dig - x 125
I'm having a terrible problem with
Client host rejected: cannot find your hostname
All error messages, config options etc are below
First trivial question: Why is the rejection message printed three
times? (I am running postfix -v)
Second, important question: I do not understand w
Carl A jeptha kirjoitti:
Some of our clients contacts are getting the above message. I have check
the hostname and ip number and they do not correspond.
Are we being to restrictive???
If required I will post my config file.
You are rejecting clients with non working dns (A and PTR must point
On 10/6/2009 10:58 AM, Carl A jeptha wrote:
Some of our clients contacts are getting the above message. I have check
the hostname and ip number and they do not correspond.
Are we being to restrictive???
If you're rejecting mail you want, then you're being too
restrictive.
If required I wi
Carl A jeptha kirjoitti:
Some of our clients contacts are getting the above message. I have check
the hostname and ip number and they do not correspond.
Are we being to restrictive???
If required I will post my config file.
Sounds like reverse problem in dns. Post your config file (postconf -
Some of our clients contacts are getting the above message. I have check
the hostname and ip number and they do not correspond.
Are we being to restrictive???
If required I will post my config file.
--
You have a Good Day now,
Carl A Jeptha
http://www.airnet.ca
Office Phone: 905 349-2084
Offi
On Thu 03 Sep 2009 04:40:51 AM CEST, Scott Haneda wrote
How exactly does one get to that man page?
man man
man 5 postconf
--
xpoint
On Wed, 02 Sep 2009, Scott Haneda wrote:
> On Sep 2, 2009, at 4:07 PM, Sahil Tandon wrote:
>
>> As clearly documented in postconf(5),
>
> How exactly does one get to that man page?
> man postconf
> That of course works.
That "works" because, absent a section specification, man(1) will only
displa
On 2-Sep-2009, at 17:02, /dev/rob0 wrote:
On Wednesday 02 September 2009 17:46:38 LuKreme wrote:
The rDNS is wrong, but does reject_unknown_hostname
care about that?
You seem to be confusing several restrictions here.
Actually, I merely typoed. I do not have "reject_unknown_hostname"
smtpd_
On 2-Sep-2009, at 20:40, Scott Haneda wrote:
On Sep 2, 2009, at 4:07 PM, Sahil Tandon wrote:
As clearly documented in postconf(5),
How exactly does one get to that man page?
man 5 postconf
--
Did they get you to trade your heroes for ghosts? Hot
ashes for trees? Hot air for a cool breeze?
Scott Haneda さんは書きました:
man postconf(5)
-bash: syntax error near unexpected token `('
man postconf5
No manual entry for postconf5
Does this imply there are version 1, 2, 3, and 4 as well? How do I
find out?
The number specifies the section, not version.
$ man 5 postconf
$ whereis postconf
pos
On Sep 2, 2009, at 4:07 PM, Sahil Tandon wrote:
> As clearly documented in postconf(5),
How exactly does one get to that man page?
man postconf
That of course works.
man postconf(5)
-bash: syntax error near unexpected token `('
man postconf5
No manual entry for postconf5
like th
On Sep 2, 2009, at 4:07 PM, Sahil Tandon wrote:
As clearly documented in postconf(5),
How exactly does one get to that man page?
man postconf
That of course works.
man postconf(5)
-bash: syntax error near unexpected token `('
man postconf5
No manual entry for postconf5
Does t
On Wed, 02 Sep 2009, LuKreme wrote:
> what exactly does "Cannot find your hostname" mean?
>
> NOQUEUE: reject_warning: RCPT from unknown[216.1.201.141]: 450 4.7.1
> Client host rejected: cannot find your hostname, [216.1.201.141];
> from= to= proto=SMTP
>
On Wednesday 02 September 2009 17:46:38 LuKreme wrote:
> what exactly does "Cannot find your hostname" mean?
>
> NOQUEUE: reject_warning: RCPT from unknown[216.1.201.141]: 450 4.7.1
> Client host rejected: cannot find your hostname, [216.1.201.141];
> from= to=
> pr
On 2-Sep-2009, at 16:46, LuKreme wrote:
what exactly does "Cannot find your hostname" mean?
Never mind. Found the answer a few seconds after hitting send.
$ host 216.1.201.141
141.201.1.216.in-addr.arpa domain name pointer unite13.ufot.com.
$ host unite13.ufot.com
Host unite13.uf
what exactly does "Cannot find your hostname" mean?
NOQUEUE: reject_warning: RCPT from unknown[216.1.201.141]: 450 4.7.1
Client host rejected: cannot find your hostname, [216.1.201.141];
from= to=
proto=SMTP helo=
;; ANSWER SECTION:
wellmissionstyle.com. 6402
Michael Monnerie:
> On Donnerstag 27 August 2009 Wietse Venema wrote:
> > And this was logged when a reverse hostname resolved to the wrong IP
> > address:
> >
> > ? ? Aug 26 00:26:12 spike postfix/smtpd[13393]: warning:
> > 61.135.132.106: address not listed for hostname
> > relay2nd.mail.sohu.com
* Michael Monnerie :
> I just found a good logging example with the nfs server:
> rpc.mountd: Fake hostname ipmi-p4u.zmi.at for 212.69.162.206 - forward
> lookup doesn't exist
> That statement makes it clear, and would be a nice message for postfix
> also.
Didn't Wietse write that code?
--
Ra
On Donnerstag 27 August 2009 Wietse Venema wrote:
> And this was logged when a reverse hostname resolved to the wrong IP
> address:
>
> Aug 26 00:26:12 spike postfix/smtpd[13393]: warning:
> 61.135.132.106: address not listed for hostname
> relay2nd.mail.sohu.com
I just found a good logging ex
to
> "protegate5.zmi.at" connected, but the host with that name has a
> different IP. So Postfix was not able to find a host name that
> resolved to that IP address.
This line alone is not really correct:
450 4.7.1 Client host rejected: cannot find your hostname,
[212.69.162.20
On Donnerstag 27 August 2009 Wietse Venema wrote:
> And this was logged when a reverse hostname resolved to the wrong IP
> address:
>
> Aug 26 00:26:12 spike postfix/smtpd[13393]: warning:
> 61.135.132.106: address not listed for hostname
> relay2nd.mail.sohu.com
Thank you for clarification. I
162.69.212.in-addr.arpa. 3600 IN PTR protegate5.zmi.at.
>
> Just the forward request doesn't fit the IP:
> # dig +short protegate5.zmi.at
> 212.69.164.56
>
> and postfix refused to take the e-mail with this message:
> 450 4.7.1 Client host rejected: cannot find your host
28.162.69.212.in-addr.arpa. 3600 IN PTR protegate5.zmi.at.
>
> Just the forward request doesn't fit the IP:
> # dig +short protegate5.zmi.at
> 212.69.164.56
>
> and postfix refused to take the e-mail with this message:
> 450 4.7.1 Client host rejected: cannot find
t the forward request doesn't fit the IP:
# dig +short protegate5.zmi.at
212.69.164.56
and postfix refused to take the e-mail with this message:
450 4.7.1 Client host rejected: cannot find your hostname,
[212.69.162.205]
The log text is not correct, it should say "your PTR 212.69.162.205
On Monday, September 1, 2008, 08:23:15, Ebbe Hjorth wrote:
> ...
> But as far as i can see, i have reverse dns and a record setup correct,
But did you arrange to have your DNS server be authoritative for your IP
range?
See http://www.ripe.net/reverse/ for details.
--
[EMAIL PROTECTED] "The
Ralf Hildebrandt wrote:
* Ebbe Hjorth <[EMAIL PROTECTED]>:
Hi,
My freebsd mailq command shows
(host mail.newsmailservice.com[212.97.129.145] said: 450 Client host
rejected: cannot find your hostname, [86.58.167.132] (in reply to RCPT TO
command))
But as far as i can see, i have rever
* Ebbe Hjorth <[EMAIL PROTECTED]>:
> Hi,
>
> My freebsd mailq command shows
>
> (host mail.newsmailservice.com[212.97.129.145] said: 450 Client host
> rejected: cannot find your hostname, [86.58.167.132] (in reply to RCPT TO
> command))
>
> But as far as i
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