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Free enterprise email server

Free enterprise email server is a must to have for any business regardless of its size, whether it’s a 1 user based business or a small company.

The majority of the shared hosting packages includes free emails, but none of them can be classed as enterprise email, in fact the majority of them come with very limited mailbox capacity, bad IP reputation that causes your emails undeliverability.

I have personally installed this for a company with over 100s of employees, as their free enterprise email server, today’s software is Zimbra Collaboration Open Source Edition.

How to install Zimbra free enterprise email server?

Depending on your OS. you should go to the following link and grab a binary installer:

Zimbra Collaboration Open Source

So let’s get started with the following commands:

Change your working directory to tmp:

cd /tmp

Download Zimbra Collaboration Open Source compressed package:


Free enterprise email zimbra on centos installation open source

Sample output:

Connecting to||:443… connected.
HTTP request sent, awaiting response… 200 OK <—-< Notice this HTTP request, that’s a GET request, we’ve covered more about HTTP requests at this article.

Then we will untar/uncompress the tarball we just downloaded:

tar xzvf zcs-8.6.0_GA_1153.RHEL6_64.20141215151155.tgz

Change the working directory to the Zimbra installation:

cd zcs-8.6.0_GA_1153.RHEL6_64.20141215151155

Start installing Zimbra:


install zimbra on centos free open source email server

There might be some packages needed to complete the installation, in the next screen the installer should guide you whether you need extra packages or not to complete zimbra the free enterprise email server.

Follow the instructions to complete installing zimbra open source on centos free open source mail server and exchange alternative

Make sure your hostname is resolvable from the internet aka FQDN.

That’s it! Now you can navigate to your hostname and start creating e-mail address, or even configure it to sell it to your customer it comes with many many features, and it’s actually considered to be the best alternative to microsoft exchange email server, the difference is this free enterprise email server and also open source, with a great community support.

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