Permission error thrown when setting default a from_email_name through Django send_mail syntax

[chrisconlan]

Supposedly, Django expects the following syntax when setting a display name for the from email:
https://stackoverflow.com/questions/9911542/how-to-specify-name-in-django-mail

DEFAULT_FROM_EMAIL = 'My Company Name <do_not_reply@example.com>'

When I use that syntax with django-ses, and supply it to the sender= argument, I get a Boto error:

boto.exception.BotoServerError: BotoServerError: 403 Forbidden
<ErrorResponse xmlns="http://ses.amazonaws.com/doc/2010-12-01/">
  <Error>
    <Type>Sender</Type>
    <Code>AccessDenied</Code>
    <Message>User xxxxxxxxxxxxx is not authorized to perform `ses:SendRawEmail' on resource do_not_reply@example.com</Message>
  </Error>
  <RequestId>xxxxxxxxxxxxxxxxxxxxxxx</RequestId>
</ErrorResponse>

When I am otherwise able to send email fine from do_not_reply@example.com if I don't use the Django syntax for supplying a from_email_name.

The error message is a clue that the 'My Company Name <do_not_reply@example.com>' syntax is being parsed correctly at some point, but the permission-checking part is not the same as if I were to supply 'do_not_reply@example.com'.