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117 lines
4.0 KiB
Plaintext
117 lines
4.0 KiB
Plaintext
==============
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Sending e-mail
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==============
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Although Python makes sending e-mail relatively easy via the `smtplib library`_,
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Django provides a couple of light wrappers over it, to make sending e-mail
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extra quick.
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The code lives in a single module: ``django.core.mail``.
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.. _smtplib library: http://www.python.org/doc/current/lib/module-smtplib.html
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Quick example
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=============
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In two lines::
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from django.core.mail import send_mail
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send_mail('Subject here', 'Here is the message.', 'from@example.com',
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['to@example.com'], fail_silently=False)
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The send_mail function
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======================
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The simplest way to send e-mail is using the function
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``django.core.mail.send_mail``. Here's its definition::
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send_mail(subject, message, from_email, recipient_list, fail_silently=False)
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All parameters are required except for ``fail_silently``, which is ``False`` by
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default.
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* ``subject``: A string.
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* ``message``: A string.
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* ``from_email``: A string.
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* ``recipient_list``: A list of strings, each an e-mail address. Each
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member of ``recipient_list`` will see the other recipients in the "To:"
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field of the e-mail message.
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* ``fail_silently``: A boolean. If it's ``False``, ``send_mail`` will raise
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an ``smtplib.SMTPException``. See the `smtplib docs`_ for a list of
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possible exceptions, all of which are subclasses of ``SMTPException``.
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.. _smtplib docs: http://www.python.org/doc/current/lib/module-smtplib.html
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The send_mass_mail function
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===========================
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``django.core.mail.send_mass_mail`` is intended to handle mass e-mailing.
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Here's the definition::
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send_mass_mail(datatuple, fail_silently=False):
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``datatuple`` is a tuple in which each element is in this format::
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(subject, message, from_email, recipient_list)
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``fail_silently`` has the same function as in ``send_mail()``.
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Each separate element of ``datatuple`` results in a separate e-mail message.
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As in ``send_mail()``, recipients in the same ``recipient_list`` will all see
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the other addresses in the e-mail messages's "To:" field.
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send_mass_mail vs. send_mail
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----------------------------
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The main difference between ``send_mass_mail()`` and ``send_mail()`` is that
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``send_mail()`` opens a connection to the mail server each time it's executed,
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while ``send_mass_mail()`` uses a single connection for each of its messages.
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This makes ``send_mass_mail()`` slightly more efficient.
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The mail_admins function
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========================
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``django.core.mail.mail_admins`` is a shortcut for sending an e-mail to the
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site admins, as defined in the `ADMINS setting`_. Here's the definition::
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mail_admins(subject, message, fail_silently=False)
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``mail_admins()`` prefixes the subject with the value of the
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`EMAIL_SUBJECT_PREFIX setting`_, which is ``"[Django] "`` by default.
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The "From:" header of the e-mail will be the value of the `SERVER_EMAIL setting`_.
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.. _ADMINS setting: http://www.djangoproject.com/documentation/settings/#admins
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.. _EMAIL_SUBJECT_PREFIX setting: http://www.djangoproject.com/documentation/settings/#email-subject-prefix
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.. _SERVER_EMAIL setting: http://www.djangoproject.com/documentation/settings/#server-email
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The mail_managers function
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==========================
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``django.core.mail.mail_managers`` is just like ``mail_admins``, except it
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sends an e-mail to the site managers, as defined in the `MANAGERS setting`_.
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Here's the definition::
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mail_managers(subject, message, fail_silently=False)
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.. _MANAGERS setting: http://www.djangoproject.com/documentation/settings/#managers
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Examples
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========
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This sends a single e-mail to john@example.com and jane@example.com, with them
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both appearing in the "To:"::
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send_mail('Subject', 'Message.', 'from@example.com',
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['john@example.com', 'jane@example.com'])
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This sends a message to john@example.com and jane@example.com, with them both
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receiving a separate e-mail::
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datatuple = (
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('Subject', 'Message.', 'from@example.com', ['john@example.com'],
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('Subject', 'Message.', 'from@example.com', ['jane@example.com'],
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)
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send_mass_mail(datatuple)
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