[Mailman-Users] Can't send messages to list

[Mark Sapiro]

Lukasz Szybalski wrote:

>One issue was a domain. I am not sure why it has worked before and one
>day it stopped, but to continue on; i still have a problem.
>
>http://mail.python.org/pipermail/mailman-users/2005-May/044742.html
>I did following test which showed me that when i use my
>SMTPHOST='example.com' i would not connect, which explains the time
>out.


Which is why the default SMTPHOST is 'localhost'.


>I have tested it by(would be nice to have this test included with
>mailman as testmailman.py or something like that):
>>su list
>>python
>>>> import smtplib
>>>> SMTPHOST = 'localhost'
>>>> SMTPPORT = 0
>>>> x = smtplib.SMTP()
>>>> x.connect(SMTPHOST, SMTPPORT)
>(220, 'mycomp.example.com ESMTP Postfix (Debian/GNU)')
>>>> x.close
><bound method SMTP.close of <smtplib.SMTP instance at 0x4021a5ec>>
>>>> x.close()
>>>> SMTPHOST = 'example.com'
>>>> x.connect(SMTPHOST, SMTPPORT)
>(220, 'mycomp.example.com ESMTP Postfix (Debian/GNU)')
>>>> x.close()
>>>> SMTPHOST = 'mycomp'
>>>> x.connect(SMTPHOST, SMTPPORT)
>(220, 'mycomp.example.com ESMTP Postfix (Debian/GNU)')
>>>> x.close()
>
>now it seemd to work for a second, it sent few mails but now:
> cat /var/log/mail.log
> says:
>Oct 23 10:55:36 localhost postfix/smtpd[11974]: connect from
>localhost[127.0.0.1]
>Oct 23 10:55:36 localhost postfix/smtpd[11974]: 3F54C25C0C3:
>client=localhost[127.0.0.1]
>Oct 23 11:00:36 localhost postfix/smtpd[11974]: timeout after DATA
>from localhost[127.0.0.1]
>Oct 23 11:00:36 localhost postfix/smtpd[11974]: disconnect from
>localhost[127.0.0.1]
>Oct 23 11:00:36 localhost postfix/cleanup[11977]: 3F54C25C0C3:
>message-id=<20061023155536.3F54C25C0C3 at mycomp.example.com>
>
>I changed the Mailman/Handlers/SMTPDirect.py as follows.
>    def __connect(self):
>        self.__conn = smtplib.SMTP()
>        self.__conn.connect(mm_cfg.SMTPHOST, mm_cfg.SMTPPORT)
>        self.__numsessions = mm_cfg.SMTP_MAX_SESSIONS_PER_CONNECTION
>and add a line so it becomes
>    def __connect(self):
>        self.__conn = smtplib.SMTP()
>        self.__conn.set_debuglevel(1)
>        self.__conn.connect(mm_cfg.SMTPHOST, mm_cfg.SMTPPORT)
>        self.__numsessions = mm_cfg.SMTP_MAX_SESSIONS_PER_CONNECTION
>
>cat /var/log/mailman/smtp-fail says:
>  Low level smtp error: [Errno 9] Bad file descriptor, msgid:
><804e5c70610201400r16756b9bm3ec9275c73984168 at mail.gmail.com>
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor
>Oct 23 11:00:36 2006 (1497) delivery to email at email.com failed with
>code -1: [Errno 9] Bad file descriptor


The above patch puts additional debugging info in Mailman's 'error'
log. If you aren't seeing this, see below.


>qrunner says:
>Oct 23 06:25:35 2006 (1491) Master watcher caught SIGHUP.  Re-opening
>log files.Oct 23 06:25:35 2006 (1492) ArchRunner qrunner caught
>SIGHUP.  Reopening logs.
>Oct 23 06:25:35 2006 (1493) BounceRunner qrunner caught SIGHUP.
>Reopening logs.Oct 23 06:25:35 2006 (1494) CommandRunner qrunner
>caught SIGHUP.  Reopening logs.
>Oct 23 06:25:35 2006 (1495) IncomingRunner qrunner caught SIGHUP.
>Reopening logs.
>Oct 23 06:25:35 2006 (1496) NewsRunner qrunner caught SIGHUP.  Reopening logs.
>Oct 23 06:25:35 2006 (1497) OutgoingRunner qrunner caught SIGHUP.
>Reopening logs.
>Oct 23 06:25:35 2006 (1498) VirginRunner qrunner caught SIGHUP.
>Reopening logs.Oct 23 06:25:35 2006 (1499) RetryRunner qrunner caught
>SIGHUP.  Reopening logs.



This indicates you did 'bin/mailmanctl reopen' (or sent mailmanctl a
SIGHUP). You need to do 'bin/mailmanctl reopen' (or send mailmanctl a
SIGINT) in order to reload the patched SMTPDirect.py module.


>What could be causing the problem?
>
>
>---
>Side note:
>is file permission like this normal?
>/var/lib/mailman/bin
>py files are in group list
>but pyo or pyc are in group root
>
>-rwxr-xr-x  1 root list  1499 2006-09-20 07:18 convert.py
>-rw-r--r--  1 root root  1148 2006-10-18 10:44 convert.pyc
>-rw-r--r--  1 root root  1148 2006-10-18 10:44 convert.pyo
>-rwxr-xr-x  1 root list  3238 2006-09-20 07:18 discard
>-rwxr-xr-x  1 root list  4399 2006-09-20 07:18 dumpdb
>-rwxr-xr-x  1 root list  4951 2006-09-20 07:18 find_member
>-rwxr-xr-x  1 root list  2633 2006-09-20 07:18 fix_url.py
>-rw-r--r--  1 root root  2491 2006-10-18 10:44 fix_url.pyc
>-rw-r--r--  1 root root  2491 2006-10-18 10:44 fix_url.pyo
>------------------------------------------------------


This is normal. The various discard, dumpdb, etc files are the command
line scripts and are normally installed with the owner/group and
permissions as above (assuming you ran the install as root).
convert.py and fix_url.py are 'withlist' scripts designed to be
imported by 'bin/withlist -r'. only the .py file is normally
installed. The .pyc (and .pyo if any) files are created by Python when
withlist imports the module. They will normally have the owner:group
of whoever ran the withlist command that imported them.

-- 
Mark Sapiro <msapiro at value.net>       The highway is for gamblers,
San Francisco Bay Area, California    better use your sense - B. Dylan