There have been a number of cases already where the smtp library has
raised a socket exception that django.core.mail would have barfed on.
Instead, django-mailer just queues the message for a retry later (and
logs the exception).
The next feature I want to work on is having the from address receive
mail delivery failures and log those in the database too. I haven't
done any work on that yet so I'm very open to suggestions and
collaborations.
James