512 lines
15 KiB
Markdown
512 lines
15 KiB
Markdown
# Integrate mlmmj mailing list manager in iRedMail (LDAP backends)
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[TOC]
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## Summary
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In iRedMail-0.9.8, we integrate mlmmj (<http://mlmmj.org>) - a simple and slim
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mailing list manager. It uses very few resources, and requires no daemons, easy
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to install, configure and manage. if offers a great set of features, including:
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* Archive
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* Subject prefix
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* Subscribers only posting
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* Moderators only posting
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* Moderation functionality
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* Custom headers / footer
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* Fully automated bounce handling
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* Complete requeueing functionality
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* Regular expression access control
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* Delivery Status Notification (RFC1891) support
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* Rich, customisable texts for automated operations
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* and more
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With mlmmj integration, you can create as many mailing lists as you want. End
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user can subscribe to mailing list `listname@domain.dom` by sending email to
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`listname+subscribe@domain.com`, unsubscribe from the list by sending email to
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`listname+unsubscribe@domain.com`. Of course you can disable the subscription
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and unsubscription with a setting.
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iRedMail team also developes a simple RESTful API server called `mlmmjadmin`
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to help manage mailing lists, it also offers script tool to manage mailing
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lists from command line.
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We will show you how to integrate both mlmmj and mlmmjadmin in this tutorial.
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## Backup LDAP data first
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Although we don't modify any existing LDAP data in this tutorial, but it's
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a good idea to backup it now before you adding any new mailing lists.
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* For OpenLDAP, please run command `bash /var/vmail/backup/backup_openldap.sh` to backup.
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* For OpenBSD ldapd, please run command `bash /var/vmail/backup/backup_ldapd.sh` to backup.
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## Install mlmmj package
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!!! attention
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Package `uwsgi` is required by the RESTful API server `mlmmjadmin`.
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* On RHEL/CentOS, `mlmmj` is available in `EPEL` repo, and it's enabled in
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iRedMail by default. So we can install it directly:
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```
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yum install mlmmj uwsgi uwsgi-plugin-python uwsgi-logger-syslog python-requests
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```
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* On Debian/Ubuntu:
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```
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apt-get install mlmmj uwsgi uwsgi-plugin-python python-requests
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```
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* On FreeBSD:
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```
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cd /usr/ports/mail/mlmmj
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make install clean
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cd /usr/ports/www/uwsgi
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make install clean
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cd /usr/ports/www/py-requests
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make install clean
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```
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* On OpenBSD (iRedMail always installs `uwsgi` during installation, so no need
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to install it here):
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```
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pkg_add mlmmj altermime
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```
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## Create required system account
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mlmmj will be ran as user `mlmmj` and group `mlmmj`, all mailing list data will
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be stored under its home directory `/var/vmail/mlmmj`:
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On Linux or OpenBSD:
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```
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groupadd mlmmj
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useradd -m -g mlmmj -d /var/vmail/mlmmj -s /sbin/nologin mlmmj
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mkdir /var/vmail/mlmmj-archive
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chown -R mlmmj:mlmmj /var/vmail/mlmmj /var/vmail/mlmmj-archive
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chmod -R 0700 /var/vmail/mlmmj /var/vmail/mlmmj-archive
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chmod 0755 /var/vmail # Make sure this directory is accessible by other users
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```
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On FreeBSD:
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```
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pw groupadd mlmmj
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pw useradd mlmmj -m -g mlmmj -s /sbin/nologin -d /var/vmail/mlmmj
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mkdir /var/vmail/mlmmj-archive
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chown -R mlmmj:mlmmj /var/vmail/mlmmj /var/vmail/mlmmj-archive
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chmod -R 0700 /var/vmail/mlmmj /var/vmail/mlmmj-archive
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chmod 0755 /var/vmail # Make sure this directory is accessible by other users
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```
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## Postfix integration
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* Please add lines below in Postfix config file `/etc/postfix/master.cf`:
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!!! attention
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* Command `/usr/bin/mlmmj-amime-receive` doesn't exist yet, we will create it
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later.
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* On FreeBSD and OpenBSD, it should be `/usr/local/usr/bin/mlmmj-amime-receive` instead.
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```
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# ${nexthop} is '%d/%u' in transport ('mlmmj:%d/%u')
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mlmmj unix - n n - - pipe
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flags=ORhu user=mlmmj argv=/usr/bin/mlmmj-amime-receive -L /var/vmail/mlmmj/${nexthop}
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```
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* Add line below in Postfix config file `/etc/postfix/main.cf`:
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```
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mlmmj_destination_recipient_limit = 1
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```
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* Open file `/etc/postfix/ldap/virtual_group_maps.cf`, replace the
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`query_filter` line by below one. It will query old mailing list and new
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mlmmj mailing list.
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```
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query_filter = (&(accountStatus=active)(!(domainStatus=disabled))(enabledService=mail)(enabledService=deliver)(|(&(objectClass=mailUser)(|(memberOfGroup=%s)(shadowAddress=%s)))(&(memberOfGroup=%s)(!(shadowAddress=%s))(|(objectClass=mailExternalUser)(&(objectClass=mailList)(!(enabledService=mlmmj)))(objectClass=mailAlias)))(&(objectClass=mailList)(enabledService=mlmmj)(|(mail=%s)(shadowAddress=%s)))))
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```
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* Open file `/etc/postfix/ldap/transport_maps_user.cf`, make sure no `ou=Users,`
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in `search_base =` line, and change `scope = one` to `scope = sub`:
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```
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search_base = domainName=%d,o=domains,dc=xx,dc=xx
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scope = sub
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```
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* Open file `/etc/postfix/ldap/transport_maps_user.cf`, replace the
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`query_filter` line by below one. It will query both mail user and mlmmj
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mailing list.
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```
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query_filter = (&(|(objectClass=mailUser)(&(objectClass=mailList)(enabledService=mlmmj)))(|(mail=%s)(shadowAddress=%s))(accountStatus=active)(!(domainStatus=disabled))(enabledService=mail))
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```
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* Run commands below to create file `/usr/bin/mlmmj-amime-receive` (Linux) or
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`/usr/local/bin/mlmmj-amime-receive` (Linux/FreeBSD):
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!!! attention
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mlmmj doesn't support signature signing very well, so we follow mlmmj
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official document and create this script to sign signature properly with
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command `altermime`. All iRedMail installation should have command
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`altermime` (package `AlterMIME`) available, so you don't need to install
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it manually
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On Linux:
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```
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cd /usr/bin/
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wget https://bitbucket.org/zhb/iredmail/raw/default/iRedMail/samples/mlmmj/mlmmj-amime-receive
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chown mlmmj:mlmmj mlmmj-amime-receive
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chmod 0550 mlmmj-amime-receive
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```
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On FreeBSD or OpenBSD:
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```
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cd /usr/local/bin/
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wget https://bitbucket.org/zhb/iredmail/raw/default/iRedMail/samples/mlmmj/mlmmj-amime-receive
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chown mlmmj:mlmmj mlmmj-amime-receive
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chmod 0550 mlmmj-amime-receive
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```
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## Amavisd Integration
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We need Amavisd to listen on one more port `10027`, it will be used to scan
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spam/virus for emails posted to mailing list.
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* Please open Amavisd config file, find parameter `$inet_socket_port`, add new
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port number `10027` in the list, like below:
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- On RHEL/CentOS, it's `/etc/amavisd/amavisd.conf`.
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- On Debian/Ubuntu, it's `/etc/amavis/conf.d/50-user`.
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- On OpenBSD, it's `/etc/amavisd.conf`.
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- On FreeBSD, it's `/usr/local/etc/amavisd.conf`.
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```
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$inet_socket_port = [10024, 10026, 10027, 9998];
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```
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* Add lines below in Amavisd config file. It creates a new policy bank called
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`MLMMJ` for emails submitted by mlmmj from port 10027. The purpose is signing
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DKIM key on outgoing emails sent by mailing list, but disable
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spam/virus/banned/bad-header checks, because emails sent to mailing list will
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be scanned either on port 10024 (incoming email from external senders) or
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10026 (outgoing email sent by smtp authenticated users).
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```
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$interface_policy{'10027'} = 'MLMMJ';
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$policy_bank{'MLMMJ'} = {
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originating => 1, # declare that mail was submitted by our smtp client
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allow_disclaimers => 0, # mailing list should use footer text instead.
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enable_dkim_signing => 1, # sign DKIm signature
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smtpd_discard_ehlo_keywords => ['8BITMIME'],
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terminate_dsn_on_notify_success => 0, # don't remove NOTIFY=SUCCESS option
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bypass_spam_checks_maps => [1], # don't check spam
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bypass_virus_checks_maps => [1], # don't check virus
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bypass_banned_checks_maps => [1], # don't check banned file names and types
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bypass_header_checks_maps => [1], # don't check bad header
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};
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```
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Now restart Amavisd and Postfix service, mlmmj mailing list manager is now
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fully integrated.
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We will setup `mlmmjadmin` program to make managing mailing lists easier.
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## Setup mlmmjadmin: RESTful API server used to manage mlmmj mailing lists
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* Download the latest mlmmjadmin release: <https://github.com/iredmail/mlmmjadmin/releases>,
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extract downloaded package to `/opt/` directory, and create a symbol link:
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!!! attention
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We use version `1.6` for example below.
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```
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cd /root/
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wget https://github.com/iredmail/mlmmjadmin/archive/1.6.tar.gz
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tar zxf 1.6.tar.gz -C /opt
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rm -f 1.6.tar.gz
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ln -s /opt/mlmmjadmin-1.6 /opt/mlmmjadmin
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```
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* Generate config file by copying sample file, `settings.py.sample`:
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```
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cd /opt/mlmmjadmin
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cp settings.py.sample settings.py
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chown mlmmj:mlmmj settings.py
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chmod 0400 settings.py
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```
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* Generate a random, long string as API auth token, it will be used by your
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API client. For example:
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```
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$ echo $RANDOM | md5sum
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43a89b7aa34354089e629ed9f9be0b3b
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```
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* Add this string in `/opt/mlmmjadmin/settings.py`, parameter `api_auth_tokens`
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like below:
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```
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api_auth_tokens = ['43a89b7aa34354089e629ed9f9be0b3b']
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```
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You can add as many token as you want for different API clients. For example:
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```
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api_auth_tokens = ['43a89b7aa34354089e629ed9f9be0b3b', '703ed37b20243d7c51c56ce6cd90e94c']
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```
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* if you manage mail accounts __WITH__ iRedAdmin-Pro, please set values of
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parameters `backend_api` and `backend_cli` in `/opt/mlmmjadmin/settings.py`
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like below:
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```
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backend_api = 'bk_none'
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backend_cli = 'bk_iredmail_ldap'
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```
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* if you do __NOT__ manage mail accounts with iRedAdmin-Pro, please set values
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of parameters `backend_api` and `backend_cli` in `/opt/mlmmjadmin/settings.py`
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like below:
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```
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backend_api = 'bk_iredmail_ldap'
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backend_cli = 'bk_iredmail_ldap'
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```
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* Add extra required parameters in `/opt/mlmmjadmin/settings.py`, so that
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mlmmjadmin can manage mailing lists stored in LDAP server.
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!!! attention
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You can find LDAP URI, basedn, bind_dn, bind_password in iRedAdmin
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config file, the bind dn must have both read and write privileges to
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manage LDAP server, iRedMail server usually use bind dn
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`cn=vmailadmin,dc=xx,dc=xx` for this purpose.
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```
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iredmail_ldap_uri = 'ldap://127.0.0.1'
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iredmail_ldap_basedn = 'o=domains,dc=XXX,dc=XXX'
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iredmail_ldap_bind_dn = 'cn=vmailadmin,dc=XXX,dc=XXX'
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iredmail_ldap_bind_password = 'xxxxxxxx'
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```
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* Add extra required parameters in `/opt/mlmmjadmin/settings.py` to use the
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directory used to store mailing lists:
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```
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MLMMJ_SPOOL_DIR = '/var/vmail/mlmmj'
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MLMMJ_ARCHIVE_DIR = '/var/vmail/mlmmj-archive'
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MLMMJ_DEFAULT_PROFILE_SETTINGS.update({'smtp_port': 10027})
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```
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* If you're running OpenBSD or FreeBSD, please add parameter `MLMMJ_SKEL_DIR`
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in `/opt/mlmmjadmin/settings.py` to set the directory which stores mlmmj mail
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templates:
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```
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MLMMJ_SKEL_DIR = '/usr/local/share/mlmmj/text.skel'
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```
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* Copy rc/systemd scripts for service control:
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```
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#
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# For RHEL/CentOS 6
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#
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cp /opt/mlmmjadmin/rc_scripts/mlmmjadmin.rhel /etc/init.d/mlmmjadmin
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chmod 0755 /etc/init.d/mlmmjadmin
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chkconfig --level 345 mlmmjadmin on
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#
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# For RHEL/CentOS 7
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#
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cp /opt/mlmmjadmin/rc_scripts/systemd/rhel.service /lib/systemd/system/mlmmjadmin.service
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chmod 0644 /lib/systemd/system/mlmmjadmin.service
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systemctl daemon-reload
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systemctl enable mlmmjadmin
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#
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# For Debian 8, Ubuntu 14.04 and earlier releases which does NOT use systemd
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#
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cp /opt/mlmmjadmin/rc_scripts/mlmmjadmin.debian /etc/init.d/mlmmjadmin
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chmod 0755 /etc/init.d/mlmmjadmin
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update-rc.d mlmmjadmin defaults
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#
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# For Debian 9 and Ubuntu 16.04 which uses systemd
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#
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cp /opt/mlmmjadmin/rc_scripts/systemd/debian.service /lib/systemd/system/mlmmjadmin.service
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chmod 0644 /lib/systemd/system/mlmmjadmin.service
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systemctl daemon-reload
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systemctl enable mlmmjadmin
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#
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# For FreeBSD
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#
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cp /opt/mlmmjadmin/rc_scripts/mlmmjadmin.freebsd /usr/local/etc/rc.d/mlmmjadmin
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chmod 0755 /usr/local/etc/rc.d/mlmmjadmin
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echo 'mlmmjadmin_enable=YES' >> /etc/rc.conf.local
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#
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# For OpenBSD
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#
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cp /opt/mlmmjadmin/rc_scripts/mlmmjadmin.openbsd /etc/rc.d/mlmmjadmin
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chmod 0755 /etc/rc.d/mlmmjadmin
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rcctl enable mlmmjadmin
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```
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* Create directory used to store mlmmjadmin log file. mlmmjadmin is
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configured to log to syslog directly.
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```
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#
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# For RHEL/CentOS
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#
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mkdir /var/log/mlmmjadmin
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chown root:root /var/log/mlmmjadmin
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chmod 0755 /var/log/mlmmjadmin
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#
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# For Debian
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#
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mkdir /var/log/mlmmjadmin
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chown root:adm /var/log/mlmmjadmin
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chmod 0755 /var/log/mlmmjadmin
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#
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# For Ubuntu
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#
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mkdir /var/log/mlmmjadmin
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chown syslog:adm /var/log/mlmmjadmin
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chmod 0755 /var/log/mlmmjadmin
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#
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# For OpenBSD/FreeBSD
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#
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mkdir /var/log/mlmmjadmin
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chown root:wheel /var/log/mlmmjadmin
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chmod 0755 /var/log/mlmmjadmin
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```
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* Update syslog daemon config file to log mlmmjadmin to dedicated log file:
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For Linux
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```
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cp /opt/mlmmjadmin/samples/rsyslog/mlmmjadmin.conf /etc/rsyslog.d/
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service rsyslog restart
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```
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For OpenBSD, please append below lines in `/etc/syslog.conf`:
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```
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!!mlmmjadmin
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local5.* /var/log/mlmmjadmin/mlmmjadmin.log
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```
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For FreeBSD, please append below lines in `/etc/syslog.conf`:
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```
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!mlmmjadmin
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local5.* /var/log/mlmmjadmin/mlmmjadmin.log
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```
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* Now it's ok to start `mlmmjadmin` service, it listens on `127.0.0.1:7790`
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by default:
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```
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#
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# On Linux/FreeBSD:
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#
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service mlmmjadmin restart
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#
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# On OpenBSD
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#
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rcctl start mlmmjadmin
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```
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On Linux, you can check the port number with command `netstat` or `ss` like below:
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```
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netstat -ntlp | grep 7790
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ss -ntlp | grep 7790
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```
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On FreeBSD/OpenBSD, run:
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```
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netstat -anl -p tcp | grep 7790
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```
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## Manage mailing lists with iRedAdmin-Pro
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With [iRedAdmin-Pro](https://www.iredmail.org/admin_panel.html), you can easily
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manage mailing list accounts with its web UI. Here's a screenshot of mailing
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list profile page in iRedAdmin-Pro:
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![](./images/iredadmin/mailinglist_profile.png){: width="900px" }
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## Manage mailing lists with mlmmjadmin command line tool
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mlmmjadmin ships script `tools/maillist_admin.py` to help you manage mailing
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lists. You can find this script under directory `/opt/mlmmjadmin/tools/`.
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!!! attention
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All settings used to create or update mailing list profiles are listed on
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[mlmmjadmin document](https://github.com/iredmail/mlmmjadmin/blob/master/docs/API.md).
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* Create a new mailing list account with additional setting:
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```python maillist_admin.py create list@domain.com only_subscriber_can_post=yes disable_archive=no```
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* Get settings of an existing mailing list account
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```python maillist_admin.py info list@domain.com```
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* Update an existing mailing list account
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```python maillist_admin.py update list@domain.com only_moderator_can_post=yes disable_subscription=yes```
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* Delete an existing mailing list account
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```python maillist_admin.py delete list@domain.com archive=yes```
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* List all subscribers:
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```python maillist_admin.py subscribers list@domain.com```
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* Show subscribed lists of a given subscriber:
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```python maillist_admin.py subscribed subscriber@domain.com```
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* Check whether mailing list has given subscriber:
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```python maillist_admin.py has_subscriber list@domain.com subscriber@gmail.com```
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## References
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* iRedMail: <http://www.iredmail.org>
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* Mlmmj: <http://mlmmj.org/>
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* Tunable parameters: <http://mlmmj.org/docs/tunables/>
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* Postfix integration: <http://mlmmj.org/docs/readme-postfix/>
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* mlmmjadmin: RESTful API server used to manage mlmmj mailing lists. Developed
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and maintained by iRedMail team. <https://github.com/iredmail/mlmmjadmin>
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