from django.template import loader, Context
from django.core.mail import send_mail

t = loader.get_template('registration/email.txt')
c = Context({
    'name': request.POST.get('name'),
    'username': request.POST.get('username'),
    'product_name': 'Your Product Name',
    'product_url': 'http://www.yourproject.com/',
    'login_url': 'http://www.yourproject.com/login/',
})


send_mail('Welcome to My Project', t.render(c), 'from@address.com', ['user@adderss.com',], fail_silently=False)

##############################################################
Sample Template for the above: registration/email.txt
##############################################################
Dear {{ name }},

Thank you for signing up with {{ product_name }}.

Your new username is {{ username }}, and you can login at {{ login_url }}. Once logged in, you'll be able to access more features on our website..

We hope that {{ product_name }} is of good use to you. If you have any feedback, please respond to this e-mail or submit it to us via our website.

Regards,

{{ product_name }} Administration
{{ product_url }}