Send invitations

Hello, we have been conducting tests of sending invitations (as a provider we use AWS) and when an error occurs in the sending because an email is misspelled or not verified, and we want to download the file that is generated showing the errors, this is finds empty.
we would like to know if there is a problem with the function or if we are doing something wrong.
Attached images to give you a better idea of the problem.

Many thanks in advanceerror enviar

Could you please send a test email message from the screen where you configure the sender service?
If there is something wrong with the service it should give a meaningful error message.

For example:

Hello, I sent the test email and no error was generatedemail