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pythondjangoemailunicodesmtplib

I can't use unicode characters in EMAIL_PASSWORD with django

I am using django 3.0.8 and in my settings.py, I've specified the password for my e-mail account using EMAIL_PASSWORD = '...'. My password contains umlauts and upon manually sending a mail from the shell I get this error:

>>> from django.core.mail import send_mail
>>> send_mail('Django mail', 'This e-mail was sent with django', ..., fail_silently=False)
Traceback (most recent call last):
  File "/usr/lib/python3.6/code.py", line 91, in runcode
    exec(code, self.locals)
  File "<console>", line 1, in <module>
  File "/home/admin/.local/lib/python3.6/site-packages/django/core/mail/__init__.py", line 60, in send_mail
    return mail.send()
  File "/home/admin/.local/lib/python3.6/site-packages/django/core/mail/message.py", line 276, in send
    return self.get_connection(fail_silently).send_messages([self])
  File "/home/admin/.local/lib/python3.6/site-packages/django/core/mail/backends/smtp.py", line 102, in send_messages
    new_conn_created = self.open()
  File "/home/admin/.local/lib/python3.6/site-packages/django/core/mail/backends/smtp.py", line 69, in open
    self.connection.login(self.username, self.password)
  File "/usr/lib/python3.6/smtplib.py", line 721, in login
    initial_response_ok=initial_response_ok)
  File "/usr/lib/python3.6/smtplib.py", line 630, in auth
    response = encode_base64(initial_response.encode('ascii'), eol='')
UnicodeEncodeError: 'ascii' codec can't encode character '\xe4' in position 19: ordinal not in range(128)

If I remove the umlaut everything works as it should. Apparently smtplib manually encodes with ascii and I don't know how to tell it not to. Any ideas?

Solution

  • This is a known issue in smtplib.

    As for now, July 2020 its is still open, with the fix awaiting review.

    Bottom line - there is a problem, it is known, there is no official solution.

    And yet, what you can do for now:

    1. Manually patch the file /usr/lib/python3.6/smtplib.py the way it is done here - it is very simple, just replace ascii with utf-8 in 3 places. I didn't try it but it works according to other users. Just backup the file just in case. Or use a virtual env with a patched smtplib.py. To be honest I personally didn't test it but people report it working.

    2. Use some alternative to smtplib. I actually don't know anything like this in native Python, however you can always use command line utilities like mail via python subprocess module, or some web services that provide mailing service via REST API (there are plenty, but this will not work if you are using mail on local company network or something).

    3. Change your password and forget about the problem.