FAQ
In September 2004, I posted on this topic with instructions for installing
mailman on the client version of MacOS X 10.3 (Panther). Later, I updated it
for OS X 10.4 (Tiger) as well as notes (but not full instructions) for OS X
10.5 (Leopard). Just recently, I did a test installation on my 10.6 (Snow
Leopard) laptop in anticipation of a new desktop to become my new server
later this year. In all cases, these were the CLIENT version of Mac OS X
(Mac OS X Server comes with a bastardized version of Mailman).

So here, once again for purposes of getting it in the archives, are my
instructions for installing mailman on MacOS X 10.6.x. With this version,
I've made some changes to bring the mailman home directory in line with
Mailman "standards" (i.e. using /usr/local/mailman instead of
/Applications/mailman), improved the system startup procedure, and some
other miscellaneous cleanup.

=========

Snow Leopard (MacOS X 10.6) installation steps for Mailman

This document is based on my experience installing Mailman 2.1.4 on MacOS X
10.3 (Panther) and subsequently upgrading to Tiger (Mac OS X 10.4) and to
mailman 2.1.6 and now to Snow Leopard (Mac OS X 10.6) with mailman 2.1.13.
It is largely based on Kathleen Webb's document on installing Mailman and
Sendmail on MacOS X 10.2 (Jaguar)
(<http://mail.python.org/pipermail/mailman-users/2002-October/022944.html>)
which contains some information on tools that can be useful that will not be
repeated here.

This guide assumes that you have Postfix (which comes with Snow Leopard)
already configured and operating, that you have the built-in web server
running (if not, enable it by going to the Sharing pane of System
Preferences and turning on Web Sharing), and that you are familiar with the
Unix shell and basic text editing from the shell (vi or emacs). It is
intended to help you get Mailman installed. It does not deal with actually
using Mailman as there are plenty of other sources of help for that.

This is based on a new install on a Snow Leopard system that has never had
Mailman on it before. Questions are best asked through the mailman-users
mailing list.

========================================
Step 1) Collect all the things you need.

a) You need to download and decompress the Mailman software. (The
installation instructions are in step 3.) Download the software from:
http://www.list.org/
Download the latest 2.1.x.tgz which is a gzip compressed tar file (.tgz).
Just leave it for now and we'll expand it later.

b) You need to be an administrator of your computer. If you do not have
administrator privileges, you will not be able to do this.

c) Python comes pre-installed on your computer. It is already
functioning and ready for use by Mailman. (To verify you have Python, open
the Terminal application. at the % prompt, type:
sudo Python -V
and then hit the enter/return key. You'll be prompted for your password.
When you enter it, the terminal will respond with the Python version.

d) Apache web server software comes pre-installed on your computer and has
already been configured and is running.

e) Postfix is already installed on your computer but is not running by
default. You will need to get Postfix configured and started but how to do
that is beyond the scope of this document. An excellent way of getting
Postfix up and running, along with a POP and IMAP server, is with MailServe
Snow <http://www.cutedgesystems.com/software/MailServeSnow/>. Note that
MailServe Snow is not free - as all the underlying software is freely
available, you're paying for the configuration and installation tool, not
the underlying software.

f) You may need to know how to get into hidden subdirectories. In the
Finder, use the Go menu and choose Go to Folder. Type in the path to the
hidden folder you need to open.

g) You may need to know how to make a new user. You use the System
Preferences application [from the Apple menu]. Use the Accounts panel in the
System section.

h) You need to install the Developer Tools that came with your Snow Leopard
disks or several of the steps won't work.

========================================
From this point on, we will do everything in Terminal and as root. So open
Terminal and then become root by typing 'sudo su'. You will be prompted for
your password and then get a # as a prompt.

Step 2) Verify the user and group needed to run Mailman.

All versions of OS X since at least Panther have come with the needed users
and groups already created. We will be using _mailman for mailman and _www
for the webserver.

To verify they're there, type 'grep _mailman /etc/group' and 'grep _mailman
/etc/passwd. Both should return one line starting with _mailman:*:78:. If
they do, they exist. You can repeat that with _www and the number you see
should be 70.

Assuming all of the above is there, we're good to go.

========================================
Step 3) Create a folder for mailman in the finder.

a) You can choose where to create the folder. I chose to follow the Mailman
"standard" and put it in /usr/local. These instructions assume that is where
you create the new folder. To create the folder, type:
mkdir -p /usr/local/mailman
Then "change directory" to it:
cd /usr/local/mailman

b) Copy the downloaded compressed tar file (e.g. mailman-2.1.13.tgz) to the
directory we just created and then uncompress and untar it. The command
below assumes that compressed tar file was downloaded into your Downloads
folder.
cp ~/Downloads/mailman-2.1.13.tgz . (yes, that's a space and a dot on
the end of the command)
tar xvzf mailman-2.1.13.tgz

c) Set the proper ownership and permissions on the mailman directory:
chown _mailman:_mailman /usr/local/mailman
chmod a+rw,g+ws /usr/local/mailman

d) Change directory in to the Mailman source directory. Assuming the you are
using the mailman-2.1.13 version, type:
cd /usr/local/mailman/mailman-2.1.13

e) Build Mailman:
./configure --prefix=/usr/local/mailman --with-cgi-gid=_www
--with-mail-gid=_mailman

f) A whole bunch of lines of code will scroll through the Terminal window.
When it finishes, in the Terminal window, type:
make install
cd /usr/local/mailman
sudo bin/check_perms -f
sudo bin/check_perms -f

(Repeat the check_perms until no errors are reported. If you end up with
problems later, this whole step is probably where the problem will come
from. Permissions are important to Mailman.)

g) Set the Mailman site password:
/usr/local/mailman/bin/mmsitepass xxxx

[Replace xxxx with the password you want to use as the master password to
the mailman application.]


========================================
Step 4) Set up your web server to serve the Mailman web pages for
subscribing and administrating the mailing list.

a) Change directory to the apache2 configuration directory (Apache2 is the
webserver):
cd /etc/apache2/

b) Edit httpd.conf with your favorite Terminal text editor such as vi or
emacs). For instance, for vi, type:
vi httpd.conf

Add these lines to the file:

ScriptAlias /mailman/ /usr/local/mailman/cgi-bin/
Alias /pipermail/ /usr/local/mailman/archives/public/
<Directory "/usr/local/mailman/archives/public">
Options FollowSymLinks
</Directory>

c) Save the file and exit the editor.

d) Copy the images used for the mailman web pages to where Apache expects
them. In Terminal:
cp /usr/local/mailman/icons/* /usr/share/httpd/icons

e) Next we need to add the cron jobs that mailman needs to any existing root
cron jobs. If there are no existing root cron jobs, you can just do:
crontab /usr/local/mailman/cron/crontab.in

However, if there are existing root cron jobs, then we need to append to it.
One way way to do that is:
crontab ?l | cat - /usr/local/mailman/crontab.in | crontab ?
(note that this outputs the existing cron jobs, concatenated the mailman
jobs to it, and the saves it as a new crontab. Make sure you have the
command right or you risk losing your old jobs. You might want to backup the
old jobs first with 'crontab -l > crontab.backup').
You can then edit the crontab with 'crontab -e'. You may want to comment out
the gate news to mail job if you aren't doing that.



========================================
Step 5) Configure Postfix to support a separate Mailman alias file.

a) Edit your Postix configuration file (possibly /etc/postfix/main.cf or if
you used MailServe Snow as I mentioned above, then it's
/usr/local/cutedge/postfix/etc/main.cf - you can also do this through the
MailServe Snow application and add this as a custom Postfix setting) and
add:
alias_maps=hash:/etc/postfix/aliases,
hash:/usr/local/mailman/data/aliases

b) Reload postfix with:
postfix reload

========================================
Step 6) Configure Mailman

a) We need to let Mailman know we're using Postfix. Using you favorite means
of text editing, open /usr/local/mailman/Mailman/mm_cfg.py and add below
the line that says "# Put YOUR site-specific settings below this line.":
MTA = "Postfix"

========================================
Step 7) Create your site-wide mailing list (mailman).

Read the instructions in INSTALL in your mailman source directory
(/Applications/Mailman/Mailman-2.1.13).

In short, in the Terminal application, type:
cd /usr/local/mailman
bin/newlist mailman
bin/config_list -i data/sitelist.cfg mailman

========================================
Step 8) Configure your system to start Mailman when it is booted. This has
been a little tricky since Leopard came out so rather than have launchd
start Mailman directly, we will have it run a script we put in root's home
directory that does it a way I've found more reliable (by waiting one second
after issuing the command to start mailman before it exits):

a) In Terminal, change directory to /var/root/:
cd /var/root

b) Using your favorite text editor (vi, emacs, or whatever), create the file
start_mailman.sh. For instance, with vi, type:
vi mailman_start.sh
And enter the lines:
#!/bin/sh
/usr/local/mailman/bin/mailmanctl -s start
sleep 1
Save and exit.

c) Change permissions to make it executable:
chmod 755 start_mailman.sh

d) Create the Mailman startup preference file:
cd /Library/LaunchDaemons
touch mailman.plist

c) Using your favorite method of text editing, add the following content to
mailman.plist:
<?xml version="1.0" encoding="UTF-8"?>

<plist version="1.0">
<dict>
<key>Disabled</key>
<false/>
<key>Label</key>
<string>mailman</string>
<key>OnDemand</key>
<true/>
<key>ProgramArguments</key>
<array>
<string>/var/root/start_mailman.sh</string>
</array>
<key>ServiceIPC</key>
<false/>
<key>RunAtLoad</key>
<true/>
</dict>
</plist>

d) Verify the file ownership and permissions:
ls -l
You should see one of the lines saying something like:
-rw-r--r-- 5 root wheel 170 12 May 11:21 mailman.plist

e) If the permissions (rw-r--r--) are not correct, type:
chmod 644 mailman.plist

f) If the owner (root) or group (wheel) is not correct, type:
chown root:wheel mailman.plist

g) Go into launchctl and enable Mailman. This should also cause it to start
immediately.
launchctl
load -w mailman.plist
(the -w is very important. The Disabled attribute in the .plist is no longer
used. Instead, Disabled status for all launchd plists is stored in
/var/db/laubchd.db/com.apple.launchd/overrides.plist and is set/unset by the
-w on the launchctl load/unload commands. Yes, it does seems needlessly
complicated).

Mailman should have started. To verify, open Terminal and type:
ps -efw | grep python
You should see a bunch of lines like this:
78 1099 1 0 0:00.01 ?? 0:00.01 /usr/bin/python
/usr/local/mailman/bin/mailmanctl -s start
78 1101 1099 0 0:08.38 ?? 0:18.67 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=ArchRunner:0:1 -s
78 1102 1099 0 0:07.29 ?? 0:17.57 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=BounceRunner:0:1 -s
78 1103 1099 0 0:08.46 ?? 0:18.83 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=CommandRunner:0:1 -s
78 1104 1099 0 0:08.14 ?? 0:18.16 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=IncomingRunner:0:1 -s
78 1105 1099 0 0:07.92 ?? 0:17.73 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=NewsRunner:0:1 -s
78 1107 1099 0 0:07.72 ?? 0:18.54 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=OutgoingRunner:0:1 -s
78 1108 1099 0 0:07.80 ?? 0:17.66 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=VirginRunner:0:1 -s
78 1109 1099 0 0:00.07 ?? 0:00.19 /usr/bin/python
/usr/local/mailman/bin/qrunner --runner=RetryRunner:0:1 -s
0 15583 15537 0 0:00.00 ttys000 0:00.00 grep pyth

(The numbers will vary. The important thing is that you see the qrunner
processes.)

========================================
Step 9) Enjoy!

At this point, mailman should be ready to use. Read the documentation in
your source directory for instructions on setting up your mailing lists.


--
Larry Stone
lstone19 at stonejongleux.com
http://www.stonejongleux.com/

Search Discussions

  • Terri Oda at Apr 30, 2010 at 3:53 am
    Thanks Larry!

    I've linked your once again excellent post into the Mac OS FAQ on the wiki:

    http://wiki.list.org/x/O4A9

    Terri
  • Barry Warsaw at Apr 30, 2010 at 5:42 pm

    On Apr 29, 2010, at 11:53 PM, Terri Oda wrote:
    Thanks Larry!

    I've linked your once again excellent post into the Mac OS FAQ on the wiki:

    http://wiki.list.org/x/O4A9
    Thanks Terri. I've also asked Larry to submit a bug report against
    mailman-administrivia so that we can update the docs.

    -Barry

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