为什么没有发送错误报告电子邮件（Django）？

Question

Python版本：3.6.3 Django版本：3.0.8

我试图通过电子邮件使用enable Django的错误报告，但当我遇到500个错误时，似乎什么也没有发生。这是我的设置文件的副本，其中删除了一些注释和敏感信息：

import os

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))

SECRET_KEY = '' # The actual value has been omitted

DEBUG = False
ADMINS = [('', '')] # Omitted. The same email address is used for EMAIL_HOST_USER and SERVER_EMAIL
MANAGERS = ADMINS
ALLOWED_HOSTS = ['.localhost', '127.0.0.1', '[::1]']
# ALLOWED_HOSTS = []
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST_USER = ''
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_PORT = 587
EMAIL_USE_TLS = True
EMAIL_HOST_PSSWORD = '' # Omitted
SERVER_EMAIL = ''

# The logging settings are intentionally commented out. Whether or not they were there seemed to make no difference. Nor did any of the suggested changes I tried.
"""
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'mail_admins': {
            'level': 'ERROR',
            'class': 'django.utils.log.AdminEmailHandler'
        }
    },
    'loggers': {
        'django.request': {
            'handlers': ['mail_admins'],
            'level': 'ERROR',
            'propagate': True,
        },
    }
}
"""

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'crispy_forms',
    'main.apps.MainConfig',
    'register.apps.RegisterConfig'
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'mysite.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'mysite.wsgi.application'

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

AUTH_PASSWORD_VALIDATORS = [
    {
        'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
    },
    {
        'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
    },
]

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

STATIC_URL = '/static/'

CRISPY_TEMPLATE_PACK = 'bootstrap4'

AUTH_USER_MODEL = 'register.CustomUser'

到目前为止，我已经尝试了以下所有答案： Django not sending emails to adminsDjango not sending error emails - how can I debug?Django doesn't email reporting an internal server error (HTTP status code 500)Receive django error debug report by email :

除了最后一个链接中导致ValueError: The ADMINS setting must be a list of 2-tuples的两个答案之外，他们似乎什么都没做。我认为问题不在于我使用的电子邮件地址，因为我一直在使用它通过其他与Django无关的Python脚本发送/接收电子邮件。我想我只是没能把它整合好

如有任何建议，将不胜感激