Error Handling for Excel Reader - send email if node failed

Hi guys,

I am new to KNIME and currently I am trying to find out how to implement a proper error handling for my data manipulation flows.

This is what I want to do:

• Read Excel File

• Data Manipulation

• Export CSV File

• if Success, then send email with success message

• if Error (e.g. Read Excel failed, because no file available), then send email with error message

I played around with Try Catch nodes but I really have no clou how to configure and use them correctly. In my mind the flow should look something like this but propably it is nonsense:

Can someone help me? How to configre the flow, that error message email is sent, if Excel Reader fails.