Contact form django 3.0

# Добрый день. Есть 2 проблемы:
# 1 мне в contact форме мне приходят письма на почту Reverse for 'chat.views.SuccessView' not found. 'chat.views.SuccessView' is not a valid view function or pattern name.
# 2 нужно сделать категорию для формы, т.е. сделать выбор к какой категории отнописьмо (категорию выбирает пользователь)


views
from django.core.mail import send_mail, BadHeaderError
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render, redirect
from .forms import FeedBackForm

def contact(request):
    if request.method == 'GET':
        form = FeedBackForm()
    else:
        form = FeedBackForm(request.POST)
        if form.is_valid():
            subject = form.cleaned_data['name']
            from_email = form.cleaned_data['email']
            message = form.cleaned_data['description']
            try:
                send_mail(subject, message, from_email, ['[email protected]'])
            except BadHeaderError:
                return HttpResponse('Invalid header found.')
            return redirect(SuccessView)
    return render(request, "chat/comment.html", {'form': form})

""" Письмо отправляется, но не приходит
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: Name
From: [email protected]
To: [email protected]
Date: @"""

# Выходит ошибка django.urls.exceptions.NoReverseMatch: Reverse for 'chat.views.SuccessView' not found.
#'chat.views.SuccessView' is not a valid view function or pattern name.
# "POST /home/comment/ HTTP/1.1" 500 89420

def SuccessView(request):
    return HttpResponseRedirect(contact)

#forms

from django import forms
"""
CATEGORY = {
    ('1', '1'),
    ('2', '2'),
    ('3', '3'),
    ('4', '4')
}
"""
class FeedBackForm(forms.Form):
    name = forms.CharField(label="Имя пользователя", max_length=150, required=True)
    email = forms.EmailField(label="email", required=True)
    description = forms.CharField(label="Текст", widget=forms.Textarea, required=True)
#   category = forms.ChoiceField(label="Категория", choices=CATEGORY, required=True)

# HTML
<div id="contact-form">
          <form action="{% url 'chat:comment' %}" method="POST">
            {% csrf_token %}
            <input type="hidden">
              <li><label for="id_name">Имя</label><input type="text" name="name" maxlength="120" required id="id_name"></li>
              <li><label for="id_email">Email</label><input type="email" name="email" maxlength="120" id="id_email"></li>
              <li>
                <label for="id_category">Как я могу помочь вам?</label>
                <!--<select name="category" id="id_category">
                  <option value="">Выберите!</option>
                  <option value="1" class="btn-info">Нужна помощь в финансовой грамотносте</option>
                  <option value="2" class="btn-info">Давай выпьем кофе</option>
                  <option value="3" class="btn-info">У меня есть личный вопрос</option>
                  <option value="4" class="btn-info">Есть ошибка на сайте</option>
                </select>-->
              </li>
              <li>
                <label for="id_description">Сообщение</label><textarea type="text" name="description" maxlength="1500" id="id_description" cols="40" rows="10"></textarea>
              </li>
            <button type="submit" class="btn btn-primary">Отправить</button>
          </form>
        </div>

# URls

from django.urls import path, include
from . import views


app_name = 'chat'
urlpatterns = [
    path("home/comment/", views.contact, name='comment'),
    path("home/success/", views.SuccessView, name="SuccessView"),
]


# Спасибо