Well Zimbra does have a connector for Outlook that is actively developed, the only way to know if Zimbra works better for you would be to try it out. I will send you a test account, so you can have an initial look. To try out the Outlook connector, you must download a Zimbra 9 trial and set that up,...

Seems to just work on Zimbra 9

This one works, used it a couple months back:

https://github.com/zimbra-api/zimbra-api

Also to debug you should send us all the headers you are sending in the requests does does not work. Most likely you are not sending the correct authentication. Try and debug using curl.

The Zimbra image you use, is not maintained, and Zimbra (from the downloads page) is not supported to run in Docker.

If you really want to do this, try and compile from source from https://github.com/Zimbra/zm-build

Hello,

Please see:
https://wiki.zimbra.com/wiki/Incoming_Mail_Problems

Hello, For Zimbra 9 you can find documentation here: https://wiki.zimbra.com/wiki/DevelopersGuide For Zimbra 8 examples can be found at: https://github.com/zimbra-community API documentation is at: https://wiki.zimbra.com/wiki/Zimlet_Developers_Guide:Zimbra_JavaScript_API_Reference All versions: htt...

rm -Rf /opt/zimbra/lib/ext/de_dieploegers_groupcal

and restart zimbra

After setting up the php soap as described in https://github.com/zimbra-api/zimbra-api/ it can be used like so: <?php ini_set('display_errors', 1); ini_set('display_startup_errors', 1); error_reporting(E_ALL); // This file is generated by Composer require_once 'zimbra-api/vendor/autoload.php'; $api ...

For Zimbra 9 there is an example Zimlet that deals with tags https://github.com/Zimbra/zimbra-zimlet-tags

There are a number of ways to do this. One easy way is to set up preAuth on your domain, that way you can get an authtoken for any user you need to get the calendar of, and then use the REST API as you already now. If you implement your own pre-auth mechanism be careful not to expose/open it to the ...