!!! attention

    We recommend [iRedMail Enterprise Edition](#ee) instead of iRedMail open source edition.

* Install iRedMail (with downloadable installer) on:
    * [Red Hat Enterprise Linux, CentOS](./install.iredmail.on.rhel.html)
    * [Debian, Ubuntu](./install.iredmail.on.debian.ubuntu.html)
    * [FreeBSD (without Jail)](./install.iredmail.on.freebsd.html), [FreeBSD with Jail (ezjail)](./install.iredmail.on.freebsd.with.jail.html)
    * [OpenBSD](./install.iredmail.on.openbsd.html)
* After installation:
    * [Setup DNS records for your iRedMail server (A, PTR, MX, SPF, DKIM, DMARC)](./setup.dns.html)
* Additional installation tips
    * [Install iRedMail with a remote MySQL server](./install.iredmail.with.remote.mysql.server.html)
    * [Perform silent/unattended iRedMail installation](./unattended.iredmail.installation.html)
* [Performance tuning for a busy server](./performance.tuning.html)
