Why send email from an email address that does not accept incoming email?

As a customer, what are we supposed to do? They could at least have a “reply-to” address that goes to a customer support email address or something like that.

The irony is that one of Amazon’s automated emails do send cc email themselves to the email address that cannot accept incoming email. Wow, that was fun

Here’s the text and picture (emphasis added in the last line).

Greetings from Amazon.com.
We wanted to let you know that we received your return for your order .
If you are due a refund you will receive another email confirmation shortly.
See our return policy for our returns timeline at www.amazon.com/help/returns
Thank you for shopping at Amazon.com.
Note: this e-mail was sent from a notification-only e-mail address that cannot accept incoming e-mail. Please do not reply to this message.