Django smtp 邮件 553报警
用163smtp发邮件时候一直报警553权限问题
smtplib.SMTPSenderRefused: (553, b'Mail from must equal authorized user', 'webmaster@localhost')
经过指点以后发现，发送邮件时DEFAULT_FROM_EMAIL这一个设置必须写，而且内容和EMAIL_HOST_USER需要一致！
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.163.com'
EMAIL_PORT = 25 # 端口号
EMAIL_HOST_USER = 'email address'
EMAIL_HOST_PASSWORD = '授权码'
DEFAULT_FROM_EMAIL = '这一项一定需要添加'
EMAIL_FROM = '可加可不加'