Default 0.30 app prints carbon test email

[jwoertink]

It should be silent.

To: [#<Carbon::Address:0x7f83d0894ee0 @name=nil, @address="test-email-2@example.com">]
From: myapp@support.com
Subject: Reset your password
CC: []
BCC: []
Headers: {}
======= TEXT =======
Please reset your password:

http://localhost:5001/password_resets/1?token=fake
======= HTML =======
<h1>Please reset your password</h1>

<a href="http://localhost:5001/password_resets/1?token=fake">Reset password</a>
.

[jwoertink]

Related: #757

I'm unable to reproduce this all of a sudden.