我无法在django后端应用程序中发送电子邮件

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.example.com'
EMAIL_PORT = 587
EMAIL_HOST_USER = 'your_email@example.com'
EMAIL_HOST_PASSWORD = 'your_email_password'
EMAIL_USE_TLS = True
DEFAULT_FROM_EMAIL = 'your_email@example.com'

from django.core.mail import send_mail

send_mail(
    'Subject',  # 邮件主题
    'Message',  # 邮件内容
    'from@example.com',  # 发件人邮箱
    ['to@example.com'],  # 收件人邮箱列表
    fail_silently=False,  # 发送失败时是否抛出异常
)