Idea/questions ! Activity Events or Simply Workflow Activities?

[tunechr]

Hi

Really loving the project and am looking forward to version 2.
In fact, I'm really keen to start really using elsa in anger!

I wanted to ask if this would be possible in currently or suggestions on how this could happen:

I'd like to be able to create a workflow where the events on an activity such as send email can be tracked.
For example:

Send an email with tracking:

• If the email bounces then remove them from a list(custom action/activity or part of the initial activity?)
• If the email is delivered then add a tag to the user (custom action/activity)
• If the email is not opened after 5 days send another email.

I'm guessing I can create extra steps in the workflow, for example, I'm using twilio as my email provider and they raise a webhook when the email is opened, delivered, spam etc. So I can intercept this and raise a workflow event.
BUT One thing I would like to try to do it create a UI which is easier for users.

So the Send Email event might have outputs as
Send Email
--Sent
--Delivered
--Opened
--Spam

This could also work with other activities which are saga like or have events associated.
Maybe it's a sub-workflow/composite activity?

Any thoughts?
Chris