Multiple email connections in Django

mail.py

from django.conf import settings
import django.core.mail


class MissingConnectionException(Exception):
    pass

def get_connection(label=None, **kwargs):
    if label is None:
        label = getattr(settings, 'EMAIL_CONNECTION_DEFAULT', None)

    try:
        connections = getattr(settings, 'EMAIL_CONNECTIONS')
        options = connections[label]
    except KeyError, AttributeError:
        raise MissingConnectionException(
            'Settings for connection "%s" were not found' % label)

    options.update(kwargs)
    return django.core.mail.get_connection(**options)

settings.py

EMAIL_CONNECTIONS = {
    'gmail': {
        'host': 'smtp.gmail.com',
        'username': 'blah@blah.com',
        'password': 'password',
        'port': 587,
        'use_tls': True,
    },
    'socketlabs': {
        'host': 'smtp.socketlabs-od.com',
        'username': 'blah',
        'password': 'password',
        'use_tls': False,
    },
    'ses': {
        'backend': 'django_ses.SESBackend',
    },
    'distributed': {
        'backend': 'tt.mail.backends.distributed.DistributedBackend',
        'components': (
            # Use SES for 8% of our emails. We send about 10,000 per day, so
            # 8% should keep us under our initial quota of 1,000.
            ('ses', 0.08),
            ('socketlabs', 0.92),
        ),
    }
}
EMAIL_CONNECTION_DEFAULT = 'distributed'