(553, b'Relaying disallowed as webmaster@localhost')

I'm trying to send a password reset email on Django web app using the Zoho SMTP but it keeps throwing this error when I use Gmail.

Below are some snippets

Views.py

 def post(self, request):

    name = request.POST['Name']
    email = request.POST['Email']
    phone = request.POST['Phone']
    message = request.POST['Message']
    email_msg = EmailMessage(
        subject='New Enquiry', 
        body=message + phone, 
        from_email='noreply@domain.com',
        to=['support@domain.com'],

        ) 
    email_msg.send()

settings.py

EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.zoho.com'
EMAIL_USE_TLS = True
EMAIL_PORT = 587
EMAIL_HOST_USER = ''
EMAIL_HOST_PASSWORD = ''
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