We need to start a process sending an email. This just works fine. The whol

I forgot to post the errors:
Error1:
Problem: An error has occurred in evaluation of an expression for a Start Event.
Details: ERROR:EVAL:@reason=Invalid index: Cannot index into Deferred
Recommended Action: Examine and correct the expressions on the Start Event's Event Properties
Error2:
Problem: This notification is sent for canceled event messages of type Email.
Details: Canceled consumed message in Message Expression Out (ERROR:EVAL:@reason=Invalid index: Cannot index into Deferred) for message sent to persistent id 0000d9ad-b952-8000-927a-010000010000 on named port 'Recibir Email'.
Recommended Action: Check the message listener for correctness. Cleanse the source of the message, if the message itself has caused the failure. For email events, place a spam filter in front of the event listener.

According to the documentation:
forum.appian.com/.../Start_Event_-_Receive_Message.html

You have Access to all the properties of the Email.
We manage to map all the properties to process variables with the exception of:
'msg!properties'.'BodyContentType'.
We could not find out its type in order to map it correctly to a process variable.

Have you tried selecting it from the expression editor as shown in this attachment? The error doesn't seem to mention the Body property at all, it seems that is being caused by something else.

What is the type of msg!body? Text?
What are the other properties related to the body of the Email Object (BodyContentType, Bodies) ?
I need the types to map these properties to Process variables and test again.

What is the Type of BodyType?

There was a mess between the mappings of the Start Event (Receive Message) and the process variables declared as parameters...Sorry, this was a silly error of mine. The problem is resolved! Thank you Eduardo.

Glad is working fine now!