Archive | Zimbra Server

Zimbra with Let’s Encrypt Certificates a step-by-step guide

This article is a step-by-step instruction on setting up a Zimbra with Let’s Encrypt certificates. If you are running a multi server installation of Zimbra it is recommended you set-up a dedicated VM for obtaining the Let’s Encrypt certificate and follow this blog. Prerequisites This guide assumes you are using Ubuntu 20 and you have […]

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NEW Zimbra Patches: 9.0.0 Patch 26 + 8.8.15 Patch 33

Hello Zimbra Friends, Customers & Partners, Zimbra 9.0.0 “Kepler” Patch 26 and 8.8.15 “James Prescott Joule” Patch 33 are here. The patches include What’s New, Security Fixes, Fixed Issues and Known Issues as listed in their respective release notes. Please refer to the release notes for the patch installation on Red Hat and Ubuntu platforms. […]

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NEW Zimbra Patches: 9.0.0 Patch 25 + 8.8.15 Patch 32

NOTICE: Clear to proceed with patch upgrade As of this time, we have addressed the previously identified issues with the patch release, and recommend customers proceed with this upgrade. As always, we recommend following best practices during patch upgrades (including taking backups of key data and config). We apologize for this unfortunate event. Hello Zimbra […]

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Zimbra SkillZ: How to use Zimbra with multiple HTTPS domains (Server Name Indication)

This article is a short how-to on making your Zimbra reachable via multiple HTTPS domains. This will allow your users to reach Zimbra using different URL’s such as: https://mail.zimbra.com and https://mail.zimbra.org. Set-up initial TLS certificate Set-up Zimbra to work with the fist HTTPS domain. Install the certificate obtained from your Certificate Authority by using one […]

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Zimbra SkillZ: How to create the certificate chain

Hello Zimbra Customers, Partners & Friends, This video is a practical how to on creating the certificate chain file. The certificate chain file usually named commercial_ca.crt and it is needed to deploy TLS certificates on Zimbra. If you’re interested, you can also read our Wiki article about Creating the Certificate Chain. Thanks, Your Zimbra Team

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