Plugin development: attach to send mail event

[Bahnstreik]

Hey there,

I’m about to create a plugin to check whether the mail has attachments.
If so, I want to check the names of the attachments for a given customer number.

To start with that, I need to attach to the send event of the mail.
I’ve studied the docu here: https://documentation.kopano.io/webapp_developers_javascript_api/
but I couldn’t find the description for the send event. (maybe I am just blind)

Is there a way to attach to that event and if so, can you give me an example how the eventhandler could look like?

[marty]

Double post: see https://forum.kopano.io/topic/3414/plugin-development-attach-to-send-event?_=1602155237526