thoughtbot/suspenders — pull request #349 by gylaz (2014-05-20 18:21:55+00:00)
Title: Ensure EMAIL_RECIPIENTS is set on staging

When the variable isn't set, mail deliveries will raise:
``` ArgumentError: An SMTP To address is required to send a message. Set the
message smtp_envelope_to, to, cc, or bcc address
``` I could cause head scratching, based on forgetting that staging intercepts
emails.