allow only registered users to see content function

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Hello,

I have this option ticked from the settings: "allow only registered users to see content" so as to it a closed site.

Now, on registration page, i wrote code to send user a consent form by using django send_mail function. Here is the problem, if i have that option above ticked, when this new code tried to send email, i was redirected to the login page (it returns me please login page after POST). Is there any way i can by-pass this option once so i can successfully send the email?

Thanks.

-Lidya