Handling SMTP errors in AutoRespondedReason field with C#

Is there a way to translate the message in the AutoRespondedReason field when receiving a Connect callback or when calling the List Recipients API?

I see no pattern in the text I receive from this field, sometimes it comes with the STMP error code, and sometimes it doesn’t, and I can’t show this message to the user of my system, because it is not easy to understand the real error that occurs.

My APIs are in C#, it would be great if DocuSign could translate the error or give us a way to decode it.