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 […]
Archive | Security & Privacy
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
Implementing a CSRF check on a Zimbra extension
By Barry de Graaff on May 18, 2022 in Community, Open Source, Security & Privacy, Zimbra SkillZ, Zimlets
Hello Zimbra Customers, Partners & Friends, In this article you will learn how to implement a CSRF check in a Zimbra extension. The Java project and source code can be found at https://github.com/Zimbra/zm-extension-guide. In many cases the Cross-Origin-Resource-Policy in the web browser and the setting of the SameSite=Strict attribute on the authentication cookie will provide […]
Security Update: Zimbra not vulnerable to recent OpenSSL and Spring RCE Vulnerabilities
Hello Zimbra Friends, Customers & Partners, New vulnerabilities in the OpenSSL and Spring Framework projects have been all over the news lately. The Zimbra Engineering team has spent some time digging into these issues to understand any potential impact to Zimbra. The good news is Zimbra does not appear to be affected by the recent […]
Email Security Webinar – SPF and DKIM
By Barry de Graaff on March 16, 2022 in Product News, Community, Security & Privacy, Webinars, Zimbra Server
Hello Zimbra Customers, Partners & Friends, Zimbra’s Barry de Graaff and Randy Leiker from Skyway Networks team up for a new webinar series focused on Email Security. These hands-on webinars will include practical how-to information and best practices to help you maximize Zimbra. Learn how to fine-tune key security standards like SPF, DKIM, DMARC, MTA-STS, […]
Did You Know? Zimbra Two-Factor Authentication (2FA)
By Barry de Graaff on March 16, 2022 in Product News, Did You Know, PowerTips – Users, Security & Privacy, Zimbra Web Client
Hello Zimbra Customers, Partners & Friends, Has your email ever been hacked? Set up two-factor authentication (2FA) for an extra layer of security for your Zimbra account. With 2FA enabled, you use your password and a code generated on your smartphone to log into your Zimbra account. Enabling 2FA is easy. You’ll need access to […]