One more question.
Does Mattermost support "a user has logged in event?"
The use case scenario we would like to support is that when a user joins the channel (or login or coming back from away), a Mattermost event is sent to all client notifying them about security risks of using Mattermost.
In the incoming webhooks configuration section, I see that I can send notification to channels and that is what we are using now.
But if we can send custom notification on user login, that would be great.
Let me know if this is possible to do either using web service API or some other way.