### Steps to reproduce

1. Try to send meeting notification mails via the API


### What is the buggy behavior?

* This is not possible as no endpoint exists for this (See&nbsp;<mention class="mention" data-id="77503" data-type="work_package" data-text="##MOB-1024" data-display-id="MOB-1024">##MOB-1024</mention>)


### What is the expected behavior?

1. There should be a way to send meeting notification emails when Begin of the insertiontheseEnd of the insertion Begin of the deletion relevantEnd of the deletion actions are Begin of the insertiondoneEnd of the insertion Begin of the deletion undertakenEnd of the deletion via the Begin of the insertionAPI:

1. Updating meeting details

2. EndingEnd of the insertion Begin of the deletion API (openingEnd of the deletion a Begin of the insertionseries

3. Restoring a previously cancelled occurrence

4. Completing the template/exiting draft modeEnd of the insertion Begin of the deletion meeting,End of the deletion for Begin of the insertiona series

2. There should be parity in notification behaviour between the web version and APIEnd of the insertion Begin of the deletion example)End of the deletion