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 […]
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 […]
Email security webinar about MTA STS, TLS RPT, and BIMI
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, […]
Zimbra SkillZ: Download email as EML file Zimlet
Hello Zimbra Customers, Partners & Friends, This new Zimlet adds a menu item in the More menu to export/download an email to an EML file. Storing email as a file can be useful for archiving and portability. EML files can be read by other mail clients such as Thunderbird. Screenshots Further reading https://github.com/Zimbra/zimbra-zimlet-export-eml https://gallery.zetalliance.org/extend/items/view/export-and-download-email-as-eml-file […]
Zimbra Security Patches: 9.0.0 Patch 24.1 + 8.8.15 Patch 31.1
Hello Zimbra Friends, Customers & Partners, A new security patch has been released to further address CVE-2022-27924. This issue has been ranked as High by the Zimbra Team and we recommend that you use the most recent release available to avoid any issues. Zimbra 9.0.0 “Kepler” Patch 24.1 Patch 24.1 has been released as a […]