Setup Calendar and Contacts

Sync Contacts and Calendars using CalDAV and CardDAV

How to sync your calendar and contacts across all your devices.

With CalDAV and CardDAV, you can keep your schedule and address book perfectly in sync across smartphones, tablets, and desktop applications. These protocols allow you to use your favorite native apps (like the built-in calendar on iOS or Android) rather than being forced to use a specific web interface.

Note: Please ensure your email account is an Enhanced mailbox - which supports mobile synchronization features - before beginning.

Step 1: Get Your Server URLs

You will need a specific URL for your Calendar and another for your Contacts. You can find these directly in your webmail interface:

  1. Log into your Webmail.

  2. Click on your Profile Picture/Icon in the top corner.

  3. Select My Account.

  4. Navigate to the Synchronization tab on the left-hand menu.

  5. Copy the unique links found under CalDAV URL and CardDAV URL.

    Webmail - Synchronization tab available for Enhanced mailboxes only.png

The URLs generally follow this format:


Step 2: Add a New Account to Your Device

The process is similar across most platforms (iOS, Android, macOS, or Thunderbird).

  1. Open your device's Settings or your preferred Calendar/Contact app.

  2. Find the option to Add Account.

  3. Select Other or Advanced Setup (do not select Google, Outlook.com, or iCloud).

  4. Choose CalDAV (for Calendars) or CardDAV (for Contacts).


Step 3: Enter Connection Details

When prompted for account details, use the Manual or Advanced setup option:

Click Finish or Save to complete the setup. Your device will now begin the initial synchronization.

Outlook - CalDAV Synchronizer Setup

Enhanced mailbox only.
Enhanced mailboxes allow you to sync calendars (CalDAV) and contacts (CardDAV) across multiple devices with applications that support the CardDAV/CalDAV protocols.

In Outlook you can sync via CalDAV / CardDAV by installing the caldavsynchronizer - an Open Source plugin that you can install on your computer and use with your Outlook. This plugin supports Outlook 2007 to Outlook 2016 and is Free and Open-Source Software (FOSS), licensed under AGPL 3 and developed by Alexander Nimmervoll and Gerhard Zehetbauer. You can find the project on Github and SourceForge.


This is a step-by-step guide to installing and setting up the caldavsynchronizer plugin.

1. Download the caldavsynchronizer

You can download the caldavsynchronizer plugin from the project's website:  https://caldavsynchronizer.org/


2. Install the caldavsynchronizer

Extract the downloaded .zip file and start the installation. Once the installation is complete, you will see a new ribbon called "CalDav Synchronizer" in your Outlook.

caldavsynchronizer setup - 1.PNG

caldavsynchronizer setup - 2.PNG

caldavsynchronizer setup - 3.PNG

caldavsynchronizer setup - 4.PNG

3. Get your CalDAV / CardDAV URLs

First, you need to obtain your CalDAV / CardDAV URLs. CalDAV is for Calendar synchronization, and CardDAV is for Contacts.

Webmail - how to access advanced settings for your email account.jpg

caldavsynchronizer setup - 8.PNG

4. Set up the caldavsynchronizer

caldavsynchronizer setup - 5.PNG

caldavsynchronizer setup - 6.PNG    caldavsynchronizer setup - 7.PNG

caldavsynchronizer setup - 9.PNG

5. Synchronize your new Profile

If the synchronization didn't start automatically, you could manually sync by going to the CalDAV Synchronization ribbon in Outlook and clicking the Synchronize now option.

caldavsynchronizer setup - 5.PNG

You can now set up a new Calendar or Contact list by adding a new Profile (step 4).

Thunderbird - Syncing Contacts and Calendars

Keep your schedule and address book in sync across all your devices using CalDAV and CardDAV protocols. This allows you to manage your data directly within Thunderbird rather than using a web interface.

Note: Please ensure your email account is an Enhanced mailbox, as these mailboxes support advanced synchronization features.

 

Step 1: Get Your Server URLs

You will need a specific URL for your Calendar and another for your Contacts. You can find these in your webmail:

  1. Log into your Webmail.

  2. Click on your Profile Picture/Icon in the top corner.

  3. Select My Account.

    Webmail - how to access advanced settings for your email account.jpg

  4. Navigate to the Synchronization tab on the left-hand menu.

  5. Copy the unique links found under CalDAV URL and CardDAV URL.

    Webmail - Synchronization tab available for Enhanced mailboxes only.png

Example URL Formats:

 

 

Step 2: Set Up Your Calendar (CalDAV)

  1. In Thunderbird, locate the Connect your linked services section and click Connect to a remote calendar.

  2. In the "Create New Calendar" window, select On the Network and click Next.

    Thunderbird - connect to a remote calendar.PNG

  3. Enter Connection Details:

    • Username: Your full email address.

    • Location: Paste your unique CalDAV URL from Step 1.

    • Click Find Calendars.

      Thunderbird - connect to a remote calendar - step 1.PNG

  4. Authentication: A prompt will appear asking for your password. Enter your email password and check Use Password Manager to remember this password.

    Thunderbird - connect to a remote calendar - step 2.PNG

  5. Finalize: Select the calendar(s) you wish to subscribe to and click Subscribe.

    Thunderbird - connect to a remote calendar - step 3.PNG

 

 

Step 3: Set Up Your Contacts (CardDAV)

  1. In the Connect your linked services section, click Connect to a CardDAV address book.

  2. Enter Connection Details:

    • Username: Your full email address.

    • Location: Paste your unique CardDAV URL from Step 1.

    • Click Continue.

      Thunderbird - connect to a cardDAV address book - step 1.PNG

  3. Authentication: When the "Authentication Required" window appears, verify your username and enter your email password. Check the box to remember the password and click OK.

    Thunderbird - connect to a cardDAV address book - step 2.PNG

  4. Your address book will now synchronize with Thunderbird.

 

Troubleshooting Tips

Verify Your Plan: Basic mailboxes support email synchronization only. If you cannot see the Synchronization tab in webmail, you may need to upgrade to an Enhanced plan.

Check Your URL: Ensure there are no extra spaces at the beginning or end of the URL when pasting it into Thunderbird.

Direct Sync: Unlike standard IMAP which only syncs email, these steps ensure your Calendar, Contacts, and Tasks stay updated across your computer, phone, and tablet.

eM Client - Syncing Calendar and Contacts

eM Client is a powerful groupware tool that allows you to manage your professional life in one place. By connecting your Calendar (CalDAV) and Contacts (CardDAV), you can keep your schedule and address book perfectly synchronized between eM Client and your other devices.

Note: Please ensure your email account is an Enhanced mailbox, as these mailboxes support advanced synchronization features.

Step 1: Get Your Server URLs

You will need a specific URL for your Calendar and another for your Contacts. You can find these in your webmail:

  1. Log into your Webmail.

  2. Click on your Profile Picture/Icon in the top corner.

  3. Select My Account.

    Webmail - how to access advanced settings for your email account.jpg

  4. Navigate to the Synchronization tab on the left-hand menu.

  5. Copy the unique links found under CalDAV URL and CardDAV URL.

    Webmail - Synchronization tab available for Enhanced mailboxes only.png

Example URL Formats:

Step 2: Set Up Your Calendar (CalDAV)

  1. Open eM Client and go to Menu > Accounts > Add Account.

  2. Select the Calendar tab and choose CalDAV. Click Next.
    eM Client - calendar - step 1.PNG

  3. Enter Server Information:

    • Account address: Paste your unique CalDAV URL.

    • User name: Your full email address.

    • Password: Your email account password.

    • Click Next.

      eM Client - calendar - step 2.PNG

  4. Account Details: Enter an Account name (e.g., "Work Calendar") so you can easily identify it in your list. Click Next.

    eM Client - calendar - step 3.PNG

  5. Finalize: Click Finish to complete the setup. Your events will now begin to sync.

    eM Client - calendar - step 4.PNG


Step 3: Set Up Your Contacts (CardDAV)

  1. Go to Menu > Accounts > Add Account.

  2. Select the Contacts tab and choose CardDAV. Click Next.

    eM Client - contacts - add cardDAV account.PNG

  3. Enter Server Information:

    • Account address: Paste your unique CardDAV URL.

    • User name: Your full email address.

    • Password: Your email account password.

    • Click Next.

      eM Client - contacts - step 1.PNG

  4. Account Details: Enter an Account name (e.g., "Company Contacts") and click Next.

    eM Client - contacts - step 2.PNG

  5. Finalize: Click Finish. Your address book is now connected.


Troubleshooting & Tips

ActiveSync / EAS - Syncing Calendars and Contacts

Sync your email, calendar, and contacts in real-time.

 

ActiveSync is the most powerful way to connect your mailbox to your mobile devices and desktop apps. Unlike standard email setups, ActiveSync provides a real-time "push" connection that synchronizes your email, calendar, contacts, and notes instantly across all your devices. This ensures your data is always consistent, no matter where you are:

Click Here to see the ActiveSync setup