Installing a Comodo SSL Certificate on Zimbra Collaboration

Installing a Comodo SSL Certificate

Use the article as a guide to installing a Comodo issued SSL certificate with the zmcertmgr tool or the Admin Console.

Using the CLI

• 1. Get the bundle from Comodo in crt format, or sometimes like a zip file. Is always good call or write Comodo and obtain the proper Bundle, but you can also download each file from the next URL (SHA2 files) - https://support.comodo.com/index.php?/Default/Knowledgebase/Article/View/620/1/
• 2. Place the bundle on your Zimbra mailbox server. You should receive, or download, the next files:
  • AddTrustExternalCARoot.crt
  • COMODORSAAddTrustCA.crt
  • COMODORSADomainValidationSecureServerCA.crt
  • my_domain_com.crt files

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How To Install an SSL Certificate from a Commercial Certificate Authority

Introduction

This tutorial will show you how to acquire and install an SSL certificate from a trusted, commercial Certificate Authority (CA). SSL certificates allow web servers to encrypt their traffic, and also offer a mechanism to validate server identities to their visitors. The main benefit of using a purchased SSL certificate from a trusted CA, over self-signed certificates, is that your site's visitors will not be presented with a scary warning about not being able to verify your site's identity.

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