---
type: entity
title: Outlook CalDav Synchronizer
tags: [software, open-source, synchronization, outlook]
related: [microsoft-outlook, groupware, caldav, carddav]
created: 2026-07-01
updated: 2026-07-01
sources: ["output/rz_uni_greifswald_de_dienste_webdienste_groupware_sync_outlook.md"]
---

# Outlook CalDav Synchronizer

**Outlook CalDav Synchronizer** is an open-source software tool used to enable CalDAV and CardDAV synchronization within [[microsoft-outlook]], bridging the functionality gap caused by Outlook's lack of native support for these protocols.

## Purpose at Universität Greifswald
The tool is utilized by university members to synchronize their calendars and contacts from the central [[groupware]] platform into the local Microsoft Outlook client. Because Microsoft Outlook lacks native support for the CalDAV and CardDAV protocols used by the university's [[groupware]] platform, this tool acts as a necessary bridge.

## Technical Implementation & Configuration
The tool integrates into Outlook as a new Ribbon menu. Users configure it by creating **Synchronization Profiles** that link a local Outlook folder to a remote server resource.

### Configuration Process
- **Profile Type:** Users typically select the "Generic CalDAV/CardDAV" profile.
- **Server URL:** `https://groupware.uni-greifswald.de`
- **Authentication:** 
    - Requires the [[zentraler-nutzeraccount]] credentials and the primary email address registered in the [[ums]].
    - Connects using URZ credentials.
- **Discovery:** The tool can automatically discover available calendars and address books on the server via the "Test or discover settings" feature.

## Features & Maintenance
- **Auto-update:** The software includes a function to check for and install updates automatically to ensure the latest version is installed.

## Usage Note
To avoid duplication or synchronization conflicts, it is recommended to use an empty Outlook calendar when first setting up the synchronization with [[groupware]].