Author Archive | Barry de Graaff

Zimbra SkillZ: Zimbra Single Sign-On with SAML (updated July 2023)

Hello Zimbra Friends, Customer & Partners, Zimbra can be used with SAML Single Sign-On (SSO). When using SAML, an Identity Provider (IdP) handles user authentication, so users can open their applications without logging on to each one separately. In SAML, these applications are called Service Providers (SP). Zimbra is a SAML SP. You can use […]

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Zimbra Now with TLS 1.3 Support!

Hello Zimbra Partners, Customers & Friends, In the latest Zimbra patch, Zimbra 9.0.0 “Kepler” Patch 13 and 8.8.15 “James Prescott Joule” Patch 20, the following packages are now GA: OpenSSL 1.1.1h support for TLS 1.3. OpenSSL 1.1.1h with FIPS module support. Postfix 3.5.6 support for TLSv1.3 Nginx 1.19.0 support for TLSv1.3 Why is this important […]

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Zimbra SkillZ: Add a Custom Python 3 Milter to Zimbra! Part 3 of the Zimbra Open Core Series

Hi Zimbra Partners, Customers & Friends, Today I will show you how to create an extension to Postfix. By implementing a Milter (an email extension protocol), you can create an extension that receives events whenever an email is sent or received. Your custom Milter extension can have event handlers for: SMTP events (CONNECT, DISCONNECT) SMTP […]

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Updated SAML for Zimbra – Now Supports Single Log Out (updated September 2024)

SAML is an open standard for Single Sign-On. When using SAML an Identity Provider (IdP) will take care of user authentication after which users can use their applications without having to log-on to each of them separately. In SAML these applications are called Service Providers (SP). In this guide we will set-up SimpleSAMLphp to act […]

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Zimbra SkillZ: Social Justice Zimlet

Hello Zimbra Customers, Partners & Friends, Today’s new Zimlet from Barry de Graaff, Channel Evangelist for Zimbra Synacor, is the Social Justice Zimlet. While you write an email, this Zimlet suggests alternative words when appropriate. For example: master ldap > primary ldap. This post shows you how to write a Zimlet that uses a keyup […]

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Zimbra SkillZ: X-Spam Zimlet

Zimbra SkillZ: X-Spam Zimlet Hi Zimbra Customers, Partners & Friends, This week Barry de Graaff, Channel Evangelist for Zimbra Synacor, brings you another new Zimlet … the X-Spam Zimlet. This Zimlet, which runs in the Modern UI, displays the X-Spam-Status and X-Spam-Score header fields from an email message. Zimbra API JS Client This blog post […]

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