Category: Zimbra
Learn how to – Install Zimbra 8.8 on Ubuntu 20.04/18.04/16.04
Learn how to – Install Zimbra 8.8 on Ubuntu 20.04/18.04/16.04. In this blog post, I’ll take you through the installation of the latest Zimbra Collaboration 8.8.x Community Edition release on an Ubuntu 20.04/18.04/16.04 LTS server. These steps are only for single server installation, for multi-server installation of Zimbra collaboration, see our guide Zimbra Multi-Server Installation on …
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Learn how to – Secure Zimbra Server with Let’s Encrypt SSL Certificate
Learn how to – Secure Zimbra Server with Let’s Encrypt SSL Certificate. This guide will show you how to easily secure your Zimbra Mail Server with Let’s Encrypt SSL certificate. The default installation of Zimbra generates self-signed SSL certificate for Mails services – POP3/IMAP/SMTP over TLS and for HTTPS access to Zimbra console services. A …
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Learn how to – How To Configure Microsoft Outlook for Zimbra
Learn how to – How To Configure Microsoft Outlook for Zimbra. This guide will take you through the steps to Configure Microsoft Outlook to connect to Zimbra email server for sending and receiving emails. We have some other articles on Zimbra which include: Managing Distribution Lists on Zimbra Mail Server Configure whitelist and blacklist Zimbra …
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Learn how to – Zimbra Firewall Configuration with Ufw & Firewalld
Learn how to – Zimbra Firewall Configuration with Ufw & Firewalld. In this guide, we’re going to look at how to secure your Zimbra collaborative suite on CentOS 7, Debian and Ubuntu server using Firewalld and Ufw respectively. If your server is running CentOS 6.x, you can use UFW or raw iptables commands for it, …
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Learn how to – Configure whitelist and blacklist Zimbra Amavis Spam filtering
Learn how to – Configure whitelist and blacklist Zimbra Amavis Spam filtering. If you’re on this page it means you’ve experienced noqueue messages on Zimbra Amavis for some emails. On this guide, I’ll show you how to Configure whitelist and blacklist Zimbra Amavis Spam filtering. Both for domains, email addresses, and IP networks/addresses. What is Amavis? From Amavis’s …
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Learn how to – Managing Distribution Lists on Zimbra Mail Server
Learn how to – Managing Distribution Lists on Zimbra Mail Server. Welcome to our guide on Managing Distribution Lists on Zimbra Mail Server. Zimbra is among the most used Email collaboration systems. It has proven to be a reliable, scalable open source email solution. In this blog post, we’re going to look at Managing Distribution Lists …
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Learn how to – Fix ERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost) (cause: java.net.ConnectException Connection refused on Zimbra
Learn how to – Fix ERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost) (cause: java.net.ConnectException Connection refused on Zimbra. Ever encountered this error “[] INFO: I/O exception (java.net.ConnectException) caught when processing request: Connection refused[] INFO: Retrying requestERROR: zclient.IO_ERROR (invoke Connection refused, server: localhost) (cause: java.net.ConnectException Connection refused)” on Zimbra. When you get this error, you can’t …
Learn how to – Install Zimbra 8.8 on CentOS 8|RHEL 8|Rocky Linux 8
Learn how to – Install Zimbra 8.8 on CentOS 8|RHEL 8|Rocky Linux 8. Setting a Mail Server is one of key requirements when starting any business. This could mean using mail solutions with SaaS offering or deploying a complete mail solution in your own infrastructure. Zimbra is a popular open source mail solution designed for …
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Learn how to – How To Set Secure Password Policy on Zimbra
Learn how to – How To Set Secure Password Policy on Zimbra. In this guide, we’ll look at all the modification you need to Set a secure Password Policy on Zimbra server. By default, Zimbra doesn’t enforce any strong password requirements for a user account. This poses a risk of the account being compromised and ultimately …
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Learn how to – Best Open Source Collaboration & Groupware Software Solutions
Learn how to – Best Open Source Collaboration & Groupware Software Solutions. Introduction Companies, groups and any persons involved in a given project or task need a way of communicating and getting reports from one another. This is where groupware applications come fully into the picture. It can be really hard or even impossible without …
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