10/15/2019 How To Create Zimbra Desktop
A user may have multiple profiles for separate accounts according to his requirements. So, before using Zimbra Connector for Outlook, a user need to configure a Zimbra Mail account profile. The best thing with ZCO is that in case if there are no profiles, it will automatically create a new profile with Zimbra name.
In this tutorial, we will examine the process of installing mail server in CentOS Linux environment. Zimbra is my personal favorite when it comes to open-source mail servers as it comes with a number of useful features such as built-in calendar support, email filtering rules, a modern interface for both users and admins, spam and malware scanners, etc. Besides server-side components, Zimbra also boasts of a full-featured web-based email client by which users can access emails, group calendars and document sharing in collaboration mode.Zimbra is available in two flavors: an open-source version and a commercial version. The latter comes with paid support plans and additional proprietary components for Outlook calendar/contact synchronization. But even the open-source version alone provides pretty much all the features that an enterprise may need.Installing Zimbra is a straightforward process as we will see in this tutorial.
We are going to use CentOS 7 (more specifically AWS CentOS 7 image) as the target platform to install Zimbra server. System Requirements for Zimbra InstallationThe official website the following hardware specification for Zimbra open-source edition.
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Intel/AMD 2.0 GHz 64-bit CPU. A minimum of 8GB of RAM for a single server installation.
10 GB disk space for software and logs, and additional disk space for mail storage and temporary filesPreparing the DNS RecordsBefore we start doing anything with the mail server itself, it is essential that the DNS records for the mail server be in place. This is because the Zimbra installer will check the DNS records for your domain and will abort if the DNS is not resolvable.At the very minimum, you would need MX and A records for the mail server. For example:example.com. IN MX 10 mail.example.com.mail.example.com.
IN A IP-Address-of-your-serverConfiguring SELinux and FirewallBefore starting the installation, I have. Tuning SELinux for Zimbra is beyond the scope of this article.Zimbra needs opened in the firewall. I have used the following set of iptables rules as AWS CentOS 7 image comes pre-built with iptables, but feel free to use (the default firewall configuration tool for stock CentOS 7) to open all necessary Zimbra ports. # yum install ntp# systemctl start ntpd# systemctl enable ntpdInstalling Zimbra on CentOSBefore installing Zimbra, we need to do some cleanup and install required dependencies.First of all, be aware that Zimbra comes with its own customized version of Postfix as a mail transfer agent (MTA). So if your CentOS system has stock Postfix pre-installed (which is the case for CentOS 7), you need to remove it. Otherwise, Zimbra installer will fail when it tries to bind its own version of Postfix to port 25, which is already occupied by pre-installed Postfix.The best method is to stop the default Postfix service and remove it altogether, so that port 25 is free to use.
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