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Install iRedMail on OpenBSD

[TOC]

System Requirements

!!! warning

iRedMail is designed to be deployed on a __FRESH__ server system, which
means your server does __NOT__ have mail related components installed,
e.g. MySQL, OpenLDAP, Postfix, Dovecot, Amavisd, etc. iRedMail will install
and configure them for you automatically. Otherwise it may override your
existing files/configurations althought it will backup files before
modifying, and it may not be working as expected.

To install iRedMail on OpenBSD, you need:

  • A FRESH, working OpenBSD system. Supported releases are listed on Download page.

  • 2 GB of memory is recommended for a low traffic production server. Spam/Virus scanning will take most system resource.

  • Required OpenBSD installation file sets are (replace [XX] by the real OpenBSD release number):

    • base[XX].tgz
    • etc[XX].tgz
    • comp[XX].tgz
    • man[XX].tgz
    • xbase[XX].tgz

  • Make sure 3 UID/GID are not used by other user/group: 2000, 2001, 2002.

!!! note

* All binary packages will be installed with command `pkg_add -i`. It will
  prompt you to choose different versions of binary packages, please choose
  the one described below:

    * choose `p5-Mail-SPF`, NOT `p5-Mail-SPF-Query`

* Nginx is used as web server.
* PF is enabled by default, with basic rules for ssh and mail services.
* OpenSMTPd are disabled by default, replaced by Postfix.

Preparations

Set a fully qualified domain name (FQDN) hostname on your server

No matter your server is a testing machine or production server, it's strongly recommended to set a fully qualified domain name (FQDN) hostname.

Enter command hostname to view the current hostname:

$ hostname
mx.example.com

On OpenBSD, hostname is set in two files: /etc/myname and /etc/hosts.

  • /etc/myname: FQDN.
mx.example.com
  • /etc/hosts: static table lookup for hostnames. Warning: Please list the FQDN hostname as first item.
# Part of file: /etc/hosts
127.0.0.1   mx.example.com mx localhost localhost.localdomain

Verify the FQDN hostname. If it wasn't changed after updating above two files, please reboot server to make it work.

$ hostname
mx.example.com

Choose a nearest mirror site for installing binary packages

iRedMail will install all required binary packages with command pkg_add -i, it will check whether you have mirror site defined in PKG_PATH environment variable, if defined, pkg_add will install packages from defined mirror site.

It's recommended to install packages from a mirror site, to reduce server load on OpenBSD primary servers. Also, installing package from a nearest mirror site will speed up package installation. You can find mirror list near you on OpenBSD web site: Getting OpenBSD.

Now login to the OpenBSD server as root user, set variable PKG_PATH in file /root/.profile like below (use your nearest mirror site instead):

export PKG_PATH="http://ftp.jaist.ac.jp/pub/OpenBSD/`uname -r`/packages/`machine -a`/"

Install Bash shell, it's required by iRedMail.

# . /root/.profile    # <- This steps is required, used to set PKG_PATH without re-login.
# pkg_add bash bzip2

Download the latest release of iRedMail

  • Visit Download page to get the latest stable release of iRedMail.

  • Upload iRedMail to your mail server via ftp or scp or whatever method you can use, login to the server to install iRedMail. We assume you uploaded it to /root/iRedMail-x.y.z.tar.bz2 (replace x.y.z by the real version number).

  • Uncompress iRedMail tarball:

# cd /root/
# tar xjf iRedMail-x.y.z.tar.bz2

Start iRedMail installer

It's now ready to start iRedMail installer, it will ask you several simple questions, that's all required to setup a full-featured mail server.

# cd /root/iRedMail-x.y.z/
# bash iRedMail.sh

!!! note "To Chinese users"

Our domain name `iredmail.org` is blocked in mainland
China since Jun 04, 2011, please run command below to finish the installation:

`IREDMAIL_MIRROR='https://dl.iredmail.org' bash iRedMail.sh`

Screenshots of installation:

  • Welcome and thanks for your use

{: width="700px" }

  • Specify location to store all mailboxes. Default is /var/vmail/.

{: width="700px" }

  • Choose backend used to store mail accounts. You can manage mail accounts with iRedAdmin, our web-based iRedMail admin panel.

!!! note

There's no big difference between available backends, so
it's strongly recommended to choose the one you're familiar with for easier
management and maintenance after installation.

{: width="700px" }

  • If you choose to store mail accounts in OpenLDAP, iRedMail installer will ask to set the LDAP suffix.

{: width="700px" }

!!! note "To MySQL/MariaDB/PostgreSQL users"

If you choose to store mail accounts in MySQL/MariaDB/PostgreSQL, iRedMail
installer will generate a random, strong password for you. You can find it
in file `iRedMail.tips`.
  • Add your first mail domain name

{: width="700px" }

  • Set password of admin account of your first mail domain.

Note: This account is an admin account and a mail user. That means you can login to webmail and admin panel (iRedAdmin) with this account, login username is full email address.

{: width="700px" }

  • Choose optional components

{: width="700px" }

After answered above questions, iRedMail installer will ask you to review and confirm to start installation. It will install and configure required packages automatically. Type y or Y and press Enter to start.

{: width="700px" }

Important things you MUST know after installation

!!! warning

The weakest part of a mail server is user's weak password. Spammers don't
want to hack your server, they just want to send spam from your server.
Please __ALWAYS ALWAYS ALWAYS__ force users to use a strong password.

Access webmail and other web applications

After installation successfully completed, you can access web-based programs if you choose to install them. Replace your_server below by your real server hostname or IP address.

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