Gmail app google app script catching failures

[William Zeni]

Hi guys, 
I searched a lot for an answer but I didn't find anything yet, I hope you will provide me with some tips. 

I was wondering if there is a way to catch errors in sending email with GmailApp in google app script. In my case, I have a script that takes some mail addresses from a sheet and try to send some emails. Sometimes could happen that the recipient doesn't exist. Actually, the script sends the email and aftwer a while it sends me back a mail delivery failure. I can't figure it out if I can manage some Promise - await code to do somenthing else when the email doesn't exist. 

Any suggestions?  

[Alex]

Nope, you can't.

It's two services: a send service and a delivery report service.

You have to checking delivery reports checking to continue making decisions in the future, but not asynchronously.