Re: intermittent DNS lookup failure in combination with reject_unknown_client_hostname

2012-11-13 Thread /dev/rob0
On Tue, Nov 13, 2012 at 09:55:11PM +0100, IMAP List Administration wrote: > I'm running a postfix (postfix-2.9.20120102-sasl2) server on That's a pre-release snapshot. Postfix 2.9 is up to patchlevel 4. > OpenBSD v5.1. We have a number of anti-UCE postfix measures in > place, including "reje

Re: intermittent DNS lookup failure in combination with reject_unknown_client_hostname

2012-11-13 Thread Wietse Venema
IMAP List Administration: > 1) is it possible that we are observing a bug in postfix in conjunction with > DNS-queries? Are there any such known bugs? If Postfix replies with 4xx unknown client, Postfix got an "soft" error FROM THE SYSTEM LIBRARY ROUTINES that the domain could not be looked up. Th

intermittent DNS lookup failure in combination with reject_unknown_client_hostname

2012-11-13 Thread IMAP List Administration
Hello Folks, I'm running a postfix (postfix-2.9.20120102-sasl2) server on OpenBSD v5.1. We have a number of anti-UCE postfix measures in place, including "reject_unknown_client_hostname", which we quite like. It's hard to believe there are so many spammers that can't overcome such a low obstacle.

Re: ..:: Postfix authentication requered for relay ::..

2012-11-13 Thread /dev/rob0
On Tue, Nov 13, 2012 at 12:39:52PM -0600, Alfonso Alejandro Reyes Jiménez wrote: > On 11/13/12 12:36 PM, Jeroen Geilman wrote: > >On 11/13/2012 12:41 AM, Alfonso Alejandro Reyes Jiménez wrote: > >>> > >>The SASL auth is working on the smtpd server and it works > >>fine, but when we try to send a

Re: ..:: Postfix authentication requered for relay ::..

2012-11-13 Thread Jerry
On Tue, 13 Nov 2012 12:39:52 -0600 Alfonso Alejandro Reyes Jiménez articulated: > On 11/13/12 12:36 PM, Jeroen Geilman wrote: > > On 11/13/2012 12:41 AM, Alfonso Alejandro Reyes Jiménez wrote: > >>> > >> The SASL auth is working on the smtpd server and it works fine, > >> but when we try to send

Re: ..:: Postfix authentication requered for relay ::..

2012-11-13 Thread Alfonso Alejandro Reyes Jiménez
On 11/13/12 12:36 PM, Jeroen Geilman wrote: On 11/13/2012 12:41 AM, Alfonso Alejandro Reyes Jiménez wrote: The SASL auth is working on the smtpd server and it works fine, but when we try to send anything from the other server we don't even see the login attempt. So...what does the postfix

Re: ..:: Postfix authentication requered for relay ::..

2012-11-13 Thread Jeroen Geilman
On 11/13/2012 12:41 AM, Alfonso Alejandro Reyes Jiménez wrote: The SASL auth is working on the smtpd server and it works fine, but when we try to send anything from the other server we don't even see the login attempt. So...what does the postfix log say on the sending side ? If an SASL co

Re: pop client for postfix.

2012-11-13 Thread Mikael Bak
On 11/12/2012 05:55 PM, John Hinton wrote: > A really good use for POP is for more sensitive email situations, such > as legal, medical or financial. Some of our users want it 'off' the > server soonest. But yes, IMAP is more the standard these days. We allow > either using Dovecot. POP is faster,

Re: smtp Auth.

2012-11-13 Thread Noel Jones
On 11/13/2012 7:03 AM, Muhammad Yousuf Khan wrote: > On Tue, Nov 13, 2012 at 12:54 PM, Patrick Ben Koetter wrote: >> * Muhammad Yousuf Khan : >>> i have been through several articles and howtos for configuring smtpd >>> to accept credential for authenticantion but all of them are fail. >>> postfix

Re: Exclude one domain in Header_Checks

2012-11-13 Thread Noel Jones
On 11/13/2012 6:15 AM, Selcuk Yazar wrote: > Hi, > > How can i exclude specific domain in header_checks file ? > > thank in advance > > -- > Selçuk YAZAR > You can't. There is no bypass/whitelist mechanism for header_checks nor body_checks. -- Noel Jones

Re: Client can't access through submission protocol

2012-11-13 Thread Noel Jones
On 11/13/2012 1:30 AM, Pierre-Gilles RAYNAUD wrote: > Hi Everyone, > > The submission port is setup like this > submission inet n - n - - smtpd > -o smtpd_tls_security_level=encrypt > -o smtpd_sasl_auth_enable=yes > -o smtpd_sasl_security_options=noanony

Re: smtp Auth.

2012-11-13 Thread Muhammad Yousuf Khan
On Tue, Nov 13, 2012 at 12:54 PM, Patrick Ben Koetter wrote: > * Muhammad Yousuf Khan : >> i have been through several articles and howtos for configuring smtpd >> to accept credential for authenticantion but all of them are fail. >> postfix relay email anonymusly no matter what i configure. here

Exclude one domain in Header_Checks

2012-11-13 Thread Selcuk Yazar
Hi, How can i exclude specific domain in header_checks file ? thank in advance -- Selçuk YAZAR

Re: Problem with postscreen when using backup MX strategy

2012-11-13 Thread Wietse Venema
Mike Hay: > Hi list, > > I recently configured postscreen on my low volume mailserver and was > pleased to find that it should be possible to avoid de-facto greylisting > when doing the deep protocol tests by using a backup MX IP on the same > host. > > After enabling this setup I found that t

Problem with postscreen when using backup MX strategy

2012-11-13 Thread Mike Hay
Hi list, I recently configured postscreen on my low volume mailserver and was pleased to find that it should be possible to avoid de-facto greylisting when doing the deep protocol tests by using a backup MX IP on the same host. After enabling this setup I found that the first client to conne

Re: smtp Auth.

2012-11-13 Thread Shiv. Nath
> * Muhammad Yousuf Khan : >> i have been through several articles and howtos for configuring smtpd >> to accept credential for authenticantion but all of them are fail. >> postfix relay email anonymusly no matter what i configure. here is the >> configuration of /etc/postfix/main.cf >> >> smtpd_t

Re: pop client for postfix.

2012-11-13 Thread Robert Schetterer
Am 13.11.2012 07:54, schrieb Muhammad Yousuf Khan: > 1. Local storage of emails, so none of the emails go to internet or US > mail serer for inside communication thats a typical multi office inside mailserver > 2. i need to provide imap facility to all the users for connecting > from there smartp