> > ubject: > Re: [Mailman-Users] Low level smtp error: Server not connected > From: > Leonard Jacobs <[EMAIL PROTECTED]> > Date: > Mon, 04 Jun 2007 00:31:01 -0400 > To: > mailman-users@python.org > > To: > mailman-users@python.org > > Content-Transfer-Encoding: > 7bit > Precedence: > list > MIME-Version: > 1.0 > References: > <[EMAIL PROTECTED]> > In-Reply-To: > <[EMAIL PROTECTED]> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: > text/plain; charset=ISO-8859-1; format=flowed > Message: > 5 > > >> >> On 5/29/07, Barry Warsaw wrote: >> >> >/ Does anybody else use Postfix 2.4? >> / >> Actually, I'm pretty sure we are currently using it on the NTP Public >> Services Project pages at ntp.isc.org, which is the project I had >> gotten involved in years ago, prior to getting involved in Mailman. I >> got on this mailing list in order to help me figure out if it would >> be a good idea to switch from Majordomo to Mailman, and I haven't >> looked back since. >> >> Currently, these are the two primary open source projects where I >> spend most of my time. >> >> >> If you want to give it a test, I could install the latest postfix 2.5 >> experimental or non-production patch releases on the python.org mail >> servers, so that we can give the newer code a try. ;) >> >> >> Seriously, I am quite convinced that the problem here is a >> mis-configuration between Mailman and postfix, and that neither >> program is necessarily "at fault". >> >> -- >> Brad Knowles <brad at shub-internet.org >> <http://mail.python.org/mailman/listinfo/mailman-users>>, Consultant >> & Author >> LinkedIn Profile: <http://tinyurl.com/y8kpxu> >> Slides from Invited Talks: <http://tinyurl.com/tj6q4> > > > Still having problems with Maioman via Postfix 2.4, so I just upgraded > to the stable patch 2.4.3. My edited mm_cfg.py file: > MTA = 'Postfix' > DEFAULT_URL_HOST = 'lists.shambhala.com' > DEFAULT_EMAIL_HOST = 'lists.shambhala.com' > add_virtualhost(DEFAULT_URL_HOST, DEFAULT_EMAIL_HOST) > OWNERS_CAN_ENABLE_PERSONALIZATION = 1 > SMTPPORT = 25 > SMTPHOST = '192.168.1.130' > > [user]# ifconfig | grep 130 > inet addr:192.168.1.130 Bcast:192.168.1.255 Mask:255.255.255.0 > > [user]# postconf | grep version > mail_version = 2.4.3 > > Yes, I have stopped & restarted Mailman after each mm_cfg.py change > and no, there are no anti-virus or other rejections with postfix. > Additionally I am not running SELinux on this box. > > After my recent Postfix upgrade to 2.4.3, my logs/smtp-failure contains: > Jun 03 23:54:13 2007 (29345) Low level smtp error: (4, 'Interrupted > system call'), msgid: <[EMAIL PROTECTED]> > Jun 03 23:54:19 2007 (29345) Low level smtp error: (4, 'Interrupted > system call'), msgid: <[EMAIL PROTECTED]> > Jun 03 23:54:20 2007 (29345) Low level smtp error: (4, 'Interrupted > system call'), msgid: <[EMAIL PROTECTED]> > Jun 03 23:54:21 2007 (29345) Low level smtp error: (4, 'Interrupted > system call'), msgid: <[EMAIL PROTECTED]> > > Now one clue that might be relevant is that when creating test lists > and testing sending messages to beta users of these lists, all works > fine. But as soon as the list contains the actual number of users, in > one case 5,100 members, in another 350 members, the mailings to the > subscribers fail with the error as listed above. And there is no > obvious throttling on the Postfix MTA. > > Think I should try downgrading to an earlier version of Postfix? It > does seem like a recent upgrade of Postfix may have broken the > connection that once did exist. Any other thoughts or suggestions > would be appreciated. > > Thanks. > > --- > [This E-mail scanned for viruses by Declude EVA] > > > > > ------------------------------------------------------------------------ > > Subject: > Re: [Mailman-Users] Low level smtp error: Server not connected > From: > Brad Knowles <[EMAIL PROTECTED]> > Date: > Sun, 3 Jun 2007 23:55:46 -0500 > To: > Leonard Jacobs <[EMAIL PROTECTED]>, mailman-users@python.org > > To: > Leonard Jacobs <[EMAIL PROTECTED]>, mailman-users@python.org > > Precedence: > list > MIME-Version: > 1.0 > References: > <[EMAIL PROTECTED]> > <[EMAIL PROTECTED]> > In-Reply-To: > <[EMAIL PROTECTED]> > Message-ID: > <[EMAIL PROTECTED]> > Content-Type: > text/plain; charset="us-ascii" ; format="flowed" > Message: > 6 > > > On 6/4/07, Leonard Jacobs wrote: > >> Yes, I have stopped & restarted Mailman after each mm_cfg.py change and >> no, there are no anti-virus or other rejections with postfix. >> Additionally I am not running SELinux on this box. > > I haven't checked the earlier messages in this thread -- I'm assuming > you have also done the stuff mentioned in FAQ 4.73 and 6.14? > >> Now one clue that might be relevant is that when creating test lists >> and >> testing sending messages to beta users of these lists, all works fine. >> But as soon as the list contains the actual number of users, in one >> case >> 5,100 members, in another 350 members, the mailings to the subscribers >> fail with the error as listed above. And there is no obvious throttling >> on the Postfix MTA. > > What is your "SMTP_MAX_RCPTS" setting? Check both Defaults.py and > mm_cfg.py. Also check the value of > "SMTP_MAX_SESSIONS_PER_CONNECTION". Then compare against their > companion values in your postfix configuration. If you don't define > the specific companion values in your /etc/postfix/main.cf, then you > may need to take a look at the output of "postconf -d" and look for them. > > See also the postfix documentation on these values, especially > <http://www.postfix.org/rate.html>. > > ------------------------------------------------------------------------ > > ------------------------------------------------------ > Mailman-Users mailing list > Mailman-Users@python.org > http://mail.python.org/mailman/listinfo/mailman-users > Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py > Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Yes, I have tried all the suggestions provided earlier in FAQ 4.73 & 6.14. I don't have any adjustments to the defaukt settings you mentioned in my mm_cfg.py file, but Defaults.py state:
[user]# grep SESSIONS Mailman/Defaults.py SMTP_MAX_SESSIONS_PER_CONNECTION = 0 [EMAIL PROTECTED] mailman]# grep RCPTS Mailman/Defaults.py SMTP_MAX_RCPTS = 500 In /etc/postfix/main.cf I have the following settings: smtpd_client_connection_limit_exceptions = $mynetworks local_destination_concurrency_limit = 2 default_destination_concurrency_limit = 100 default_destination_recipient_limit = 50 maximal_backoff_time = 1000s minimal_backoff_time = 300s Think these need tweaking? Which other postfix settings are the "companion values" to those Mailman ones? Thanks. --- [This E-mail scanned for viruses by Declude EVA] ------------------------------------------------------ Mailman-Users mailing list Mailman-Users@python.org http://mail.python.org/mailman/listinfo/mailman-users Mailman FAQ: http://www.python.org/cgi-bin/faqw-mm.py Searchable Archives: http://www.mail-archive.com/mailman-users%40python.org/ Unsubscribe: http://mail.python.org/mailman/options/mailman-users/archive%40jab.org Security Policy: http://www.python.org/cgi-bin/faqw-mm.py?req=show&file=faq01.027.htp
