Install mailman 2.x on CentOS 7

How to install mailman 2.x on CentOS 7#

Intro#

Mailman is a simple lightweight mailing list manager.

Prerequisites#

yum install ntp
systemctl enable ntpd 
systemctl start ntpd
yum update
vi /etc/hostname
lists.university.edu
reboot

Install and configure mailman#

yum install epel-release
yum install mailman

Edit /usr/lib/mailman/Mailman/Defaults.py with the following:

DEFAULT_EMAIL_HOST = 'lists.university.edu'
DEFAULT_URL_HOST = 'lists.university.edu'
DEFAULT_URL_PATTERN = 'https://%s/mailman/cgi-bin/'

Then edit /etc/mailman/mm_cfg.py with:

[...]
DEFAULT_URL_PATTERN = 'http://%s/'
[...]
DEFAULT_EMAIL_HOST = 'lists.university.edu'
[...]
DEFAULT_URL_HOST = 'lists.university.edu'

Configure postfix for sending emails#

Configure postfix's main.cf

vi /etc/postfix/main.cf

inet_interfaces = lists.university.edu, localhost
mydestination = $myhostname, localhost.$mydomain, localhost, lists.university.edu

Configure postfix's master.cf, uncomment the last lines in the file so as to have:

vi /etc/postfix/master.cf

mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user}

And then restart postfix

systemctl restart ###postfix or master###

Add your first mailing list#

Add stuff here...