Why is my email template in Django sending the whole model and not just the values input

I'm trying to email a copy of my contact form when the form is saved, but the template tags seem to be pulling the full model not just the inputs. I have no idea what I'm doing wrong here.

My email template.txt file

Hi! 
You received a message from {{ contact_form.name }} at {{ contact_form.email }}

{{ contact_form.message}}

My views.py

if request.method == "POST":
        contact_form = ContactForm(request.POST, request.FILES)
        if contact_form.is_valid():
            contact_form.save(commit=False)
            try:
                contact_form.image_field_1 = request.FILES['image_field_1']
            except:
                contact_form.save()
            try:
                contact_form.image_field_2 = request.FILES['image_field_2']
            except:
                 contact_form.save()                
            contact_form.save()

            subject = 'Website enquiry'
            body = render_to_string(
            'contact_emails/contact_email_body.txt',
            {'contact_form': contact_form,
            })
        
            send_mail(
               subject,
               body,
               settings.DEFAULT_FROM_EMAIL,
               ['test@gmail.com'],
            )        
            messages.success(request, 
                            "Message received! \
                            We will respond as soon as possible!")

    else:
        contact_form = ContactForm()

This is what arrives in the email

Hi! You received a message from at

Testing again Вернуться на верх