Hello Zimbra Customers, Partners & Friends, In the past Zimbra recommended to set the X-XSS-Protection HTTP response header. This header used to enable additional protection against cross-site scripting (XSS) attacks in some web browsers. However this header is now deprecated and support is removed from most browsers. In case you have configured Zimbra to use […]
Author Archive | Barry de Graaff
Automated installation of Zimbra and Lets Encrypt update!
Previously we introduced the zinstaller script that can be used for automating the installation of Zimbra. The zinstaller script will install a Zimbra 9 single server on Ubuntu 20 and will also obtain and install a 60-day trial license. It now also supports automated installation of Zimbra with Let’s Encrypt certificates and it will take […]
Zimbra SkillZ: Add an External Email Warning in Zimbra via the Admin Console
Hello Zimbra Customers, Partners & Friends, New with 9.0.0 Patch 25, you can add an external email warning in Zimbra using the Admin Console. An external email warning message alerts you when you receive email from an external domain. This is done using a Sieve filter, and it can be enabled per account, COS, domain […]
Zimbra SkillZ: Using Sieve Filters on Zimbra via the Admin Console
Hello Zimbra Customers, Partners & Friends, This article is a short how-to on using Sieve filters on Zimbra via the Admin Console. Sieve is a powerful scripting language for filtering incoming email messages. While Zimbra supports user set incoming email filters, the Sieve filters are meant to be set up and installed by administrators. Here’s […]
Zimbra SkillZ: Legal Intercept in Zimbra (updated April 2023)
Hi Zimbra Customers, Partners & Friends, Did you know that Zimbra has a Legal Intercept for Law Enforcement feature? This is used to obtain copies of email messages that are sent, received or saved as drafts from targeted accounts. Intercepted messages are sent to a designated shadow email address. Legal Intercept can be configured to […]
Traffic Light Protocol (TLP) Zimlet
The Traffic Light Protocol (TLP) Zimlet adds a menu to Zimbra that allows the use of First.org Traffic Light Protocol (TLP) confidentiality designations. By using TLP you can set a confidentiality designation on an email similar to the functionality offered by the Confidential Header Zimlet. Benefits of the TLP approach is that it works on […]