Fix for ExceptionNotifier failing to send emails
Fix for ExceptionNotifier failing to send emails

Fix for smtp breaking on an array of destination
addresses.

The exception notifier, specifically, was
failing to deliver emails because of this problem.

The fix is from Dmitry Polushkin
https://rails.lighthouseapp.com/projects/8994/tickets/2340-action-mailer-cant-deliver-mail-via-smtp-on-ruby-191

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