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IndiMail Queue Mechanism

Indimail has the ability of configuring multiple local and remote queues. A queue is a location on your hard disk where email are deposited before actual delivery. When you have massive injecting rates, your software may place multiple files in a single directory. This drastically reduces file system performance. IndiMail avoids this by injecting your email in a queue consisting of multiple directories and mails distributed as evenly as possible across these directories.


Balancing of emails across multiple queues is achieved by the program qmail-multi(8), which is actuall just a qmail-queue(8) replacement. Any qmail-queue frontend can use qmail-multi. The list of qmail-queue frontends in IndiMail are
sendmail
qmail-inject
qmail-smtpd
qmail-qmqpd
qmail-qmtpd
qreceipt
condredirect
dotforward
fastforward
forward
maildirserial
new-inject
ofmipd
replier
rrforward



You just need to configure the following environment variables to have the qmail-queue(8) frontends using qmail-multi(8)
1. QUEU…
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RoundCube with IndiMail

These instructions will work on CentOS, RHEL, Fedora. For Debian/Ubuntu and other distros, please use your knowledge to make changes accordingly. In this guide, replace indimail.org with your own hostname.
Non SSL Version Install/Configuration (look below for SSL config)
Install RoundCube. On older systems, use the yum command
$ sudo dnf -y install roundcubemail php-mysqlnd


Connect to MySQL using a privileged user. IndiMail installation creates a privileged mysql user 'mysql'. It does not have the user 'root'. Look at the variable PRIV_PASS in /usr/sbin/svctool to know the password.
$ /usr/bin/mysql -u mysql -p mysql MySQL> create database RoundCube_db; MySQL> create user roundcube identified by 'subscribed'; MySQL> GRANT ALL PRIVILEGES on RoundCube_db.* to roundcube; MySQL> FLUSH PRIVILEGES; MySQL> QUIT; $ /usr/bin/mysql -u mysql -p RoundCube_db < /usr/share/roundcubemail/SQL/mysql.initial.sql


Copy /etc/roundcube/config.inc.php.sample to …

Using Docker Engine to Run IndiMail / IndiMail-MTA

IndiMail now has docker images. You can read about installing Dockerhere. Once you have installed docker-engine, you need to start it. Typically it would be
$ sudo service docker start
To avoid having to use sudo when you use the docker command, create a Unix group called docker and add users to it. When the docker daemon starts, it makes the ownership of the Unix socket read/writable by the docker group.
Warning: The docker group is equivalent to the root user; For details on how this impacts security in your system, see Docker Daemon Attack Surface for details.$ sudo groupadd docker $ sudo usermod -aG docker your_username
Log out and login again to ensure your user is running with the correct permissions. You can run the unix id command to confirm that you have the docker group privileges. e.g.
$ id -a uid=1000(mbhangui) gid=1000(mbhangui) groups=1000(mbhangui),10(wheel),545(docker) context=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023
Now we need to pull the docker image for I…

Using systemd to start IndiMail

systemd is a system and service manager for Linux, compatible with SysV and LSB init scripts. systemd provides aggressive parallelization capabilities, uses socket and D-Bus activation for starting services, offers on-demand starting of daemons, keeps track of processes using Linux cgroups, supports snapshots and restoring of the system state, maintains mount and automount points and implements an elaborate transactional dependency-based service control logic. It can work as a drop-in replacement for sysvinit.

The first step is to write the service configuration file for IndiMail as /lib/systemd/system/indimail.service


[Unit] Description=IndiMail Messaging Platform After=local-fs.target network.target [Service] ExecStart=/var/indimail/bin/svscanboot /service ExecStop=/etc/init.d/indimail stop Restart=on-failure Type=simple [Install] WantedBy=multi-user.target

In Fedora 15, upstart has been replaced by a service called systemd. Due to improper rpm package upgrade scripts, some system …

IndiMail Installation for newbies in < 10 steps

Installing Indimail using YUM/APT Repository Install OS
OpenSUSE
openSUSE Leap 42.3
openSUSE Leap 42.2
openSUSE 13.2
openSUSE 13.1
SUSE Linux Enterprise 12 SP2
SUSE Linux Enterprise 12 SP1
SUSE Linux Enterprise 12
Red Hat
Feodra 27
Fedora 26
Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 6
CentOS 7
CentOS 6
Debian
Debian 8.0
Debian 7.0
Ubuntu 17.04
Ubuntu 16.10
Ubuntu 16.04
Ubuntu 14.04
Ubuntu 12.04
Click the below URL for Install Instructions
https://software.opensuse.org/download.html?project=home%3Aindimail&package=indimail Shutdown MySQL if already running and disable MySQL from being started up by the system % /etc/init.d/mysqld stop % sudo chkconfig mysqld off % /bin/rm -f /service/mysql.3306/down
Start IndiMail
% sudo service indimail start Check Servicess
% sudo /usr/bin/svstat /service/* /service/clamd: up (pid 1014) 2985 seconds /service/dnscache: up (pid 1021) 2985 seconds /service/fetchmail: down 2985 seconds /service/freshclam: up (pid 1020) 2…

Eliminating Duplicate Emails during local delivery

Often you will find program like MS outlook, notorious for sending duplicate emails, flooding your inbox. IndiMail allows you to quickly deal with this proprietary nonsense by turning on duplicate eliminator in vdelivermail(8) - the default MDA. To turn on the duplicate eliminator in vdelivermail, you need to set ELIMINATE_DUPS and MAKE_SEEKABLE environment variables.

% su
# echo 1> /service/qmail-send.25/variables/ELIMINATE_DUPS
# echo 1> /service/qmail-send.25/variables/MAKE_SEEKABLE
# svc -d /service/qmail-send.25; svc -u /service/qmail-send.25
# exit

If you do not use vdelivermail and want to use your own delivery agent? Fear not by using ismaildup(1). ismaildup expects the email on standard input and is easily scriptable like the example below in a .qmail file.

   | ismaildup /var/indimail/bin/maildirdeliver /home/manny/Maildir

will deliver mails to /home/manny/Maildir while discarding duplicates.

If you are not happy with the 900 seconds (15 minutes) time interval for checking …

Using procmail with Indimail

IndiMail follows the traditional UNIX philosophy. "Write programs that do one thing and do it well. Write programs to work together. Write programs to handle text streams, because that is a universal interface" This allows IndiMail to interface with many programs written by others. IndiMail uses a powerful filter mechanism called vfilter(8). You may already be familiar with procmail. procmail is a mail delivery agent (MDA) capable of sorting incoming mail into various directories and filtering out messages. There are three ways in which you can use procmail with IndiMail. 1. inside .qmail Users can use | preline procmail from ~/.qmail. They will need to use a full path for procmail unless procmail is in the system's startup PATH. 2. Edit .qmail-default | preline -f procmail -p -m /var/indimail/etc/procmailrc 3. Have an alias You can use valias(1) to create an alias to call procmail. The following alias calls procmail to deliver the mail using /var/indimail/etc/procmailrc as a pr…