django send email using SMTP mail server including no module names 'django_smtp_ssl.

 django, write send email with scheduled times like cron :

https://stackoverflow.com/questions/63552113/gmail-schedule-send-email-in-django

EMAIL_BACKEND = 'django_smtp_ssl.SSLEmailBackend'
EMAIL_USE_TLS = True
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_HOST_USER = 'your_email'
EMAIL_HOST_PASSWORD = 'your password'
DEFAULT_FROM_EMAIL = EMAIL_HOST_USER
EMAIL_PORT = 465

Then in your tasks.py you can add the function for scheduling emails as follows:

from django.template.loader import render_to_string
from django.core.mail import EmailMessage


@periodic_task(
run_every=(crontab(hour=3, minute=34)), #runs exactly at 3:34am every day
name="Dispatch_scheduled_mail",
reject_on_worker_lost=True,
ignore_result=True)
def schedule_mail():
    message = render_to_string('app/schedule_mail.html')
    mail_subject = 'Scheduled Email'
    to_email = getmail
    email = EmailMessage(mail_subject, message, to=[to_email])
    email.send()

django send email offical documentation: 

https://docs.djangoproject.com/en/4.1/topics/email/

Mail is sent using the SMTP host and port specified in the EMAIL_HOST and EMAIL_PORT settings. The EMAIL_HOST_USER and EMAIL_HOST_PASSWORD settings, if set, are used to authenticate to the SMTP server, and the EMAIL_USE_TLS and EMAIL_USE_SSL settings control whether a secure connection is used.

django ModuleNotFoundError: No module named 'django_smtp_ssl'
https://stackoverflow.com/questions/45817296/django-1-8-6-modulenotfounderror-no-module-named-django-smtp-ssl

pip install django-smtp-ssl

For docker, add this in requirements.txt
django-smtp-ssl>=1.0,<2.0
https://pypi.org/project/django-smtp-ssl/#history