In this article you will find a short how-to on how to fix the issue that some Samsung phones can receive mail, see calendars, but cannot send mail via Zimbra. Users will see messages go immediately to the outbox with a warning that the message was not sent. ActiveSync protocol version This issue affects only […]
Author Archive | Barry de Graaff
Automatically deploy and update Zimbra Connector for Outlook using OPSI
OPSI, which stands for Open PC Server Integration, is an open-source software deployment and management solution designed primarily for Windows-based networks. It provides a comprehensive suite of tools for automating software deployment, patch management, inventory management, and system configuration across multiple computers in an organization’s network. OPSI is often used for rolling out Windows workstations […]
Zimbra BigBlueButton Zimlet
With the Zimbra BigBlueButton Zimlet you can offer your users a convenient way to schedule meetings in BigBlueButton right from within the Zimbra UI. The Zimlet adds an option to insert BigBlueButton meeting information to calendar appointments in Zimbra and offers a way to join BigBlueButton meetings from Zimbra. The integration is available for Zimbra […]
Introducing vdirsyncer for migrating calendars and addressbooks
Vdirsyncer is a command-line tool for synchronizing calendars and addressbooks between servers such as Zimbra and Nextcloud or any server that supports open standards such as CalDAV/CardDAV. Aditionally Vdirsyncer support Google Calendar and Google Contacts. While vdirsyncer excels at migrating calendar and address book data, it’s worth noting that email data migration can be achieved […]
Disable login using email alias
Historically in Zimbra it has been possible to log in using the account email address, but also using an email alias. For security reasons it is recommended to disable the log in by use of an alias. Follow below steps to find out if alias login is enabled on your Zimbra deployment, and configure it […]
Custom SpamAssassin Rules in Zimbra
In this article you will learn how to add custom SpamAssassin Rules to Zimbra. This way you can filter email that may have fooled your spam filtering or mitigate vulnerabilities such as CVE-2024-21413 where file:// hyperlinks cause problems in MS Outlook. SpamAssasin localrules In this example we are going to filter email that contains the […]