How to send Email without using settings.py ? (smtp parameters in database) - django

Question

I would like to be able to send emails with django but without using the email parameters in settings.py.
(EMAIL_HOST, EMAIL_USE_TLS, EMAIL_HOST_PASSWORD, etc ...)
These parameters are stored in db because they can be different depending on the user.
How to use these parameters in base to send emails and not those in settings.py ?
class EmailThread(threading.Thread):
"""
Class email (Thread)
"""
def __init__(self, subject, html_content, recipient_list):
self.subject = subject
self.recipient_list = recipient_list
self.html_content = html_content
threading.Thread.__init__(self)
def run (self):
msg = EmailMessage(self.subject,
self.html_content,
settings.EMAIL_HOST_USER,
self.recipient_list)
msg.content_subtype = "html"
msg.send()
def send_html_mail(subject, html_content, recipient_list):
"""
send an email asynchronous
"""
EmailThread(subject, html_content, recipient_list).start()
I can get the parameters using: email_params = EmailParameter.objects.get(user=request.user)
class EmailParameter(models.Model):
email_use_tls = models.BooleanField(_("email use tls"), default=True)
email_use_ssl = models.BooleanField(_("email use tls"), default=False)
email_host = models.URLField(_("email host"), max_length=200)
email_host_user = models.CharField(_("email host user"), max_length=200)
email_host_password = models.CharField(_("email host password"), max_length=200)
email_port = models.PositiveIntegerField(_("email port"))
default_from_email = models.EmailField(_("default from email"), max_length=200)
signature = models.TextField(_("signature"))
user = models.ForeignKey(
User,
verbose_name = _("user"),
related_name = "user_email_parameter",
on_delete=models.CASCADE
)

Answer 1

Just move all necessary parameters inside class instance and use it instead of settings.XXX:
class EmailThread(threading.Thread):
def __init__(self, subject, html_content, recipient_list, email_host_user):
self.subject = subject
self.recipient_list = recipient_list
self.html_content = html_content
# set parameter to instance
self.email_host_user = email_host_user
threading.Thread.__init__(self)
def run (self):
msg = EmailMessage(self.subject,
self.html_content,
# use instance parameter
self.email_host_user,
self.recipient_list)
msg.content_subtype = "html"
msg.send()
# add email_host_user to be able set it when call mail send process
def send_html_mail(subject, html_content, recipient_list, email_host_user):
EmailThread(subject, html_content, recipient_list, email_host_user).start()
Now you able to send mail with custom parameters:
e_h_u = EmailParameter.objects.get(user=request.user).email_host_user
send_html_mail(subject, html_content, recipient_list, e_h_u)