# SMTP AUTH extension not supported by server when trying to send E Mail **URL:** \ **Category:** Self hosted Taiga\ **Tags:** issues, docker\ **Created:** [December 25, 2023, 6:03pm UTC](https://community.taiga.io/t/smtp-auth-extension-not-supported-by-server-when-trying-to-send-e-mail/2360 "2023-12-25T18:03:49Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![Limecode](https://avatars.discourse-cdn.com/v4/letter/l/f1d935/32.png) [@Limecode](https://community.taiga.io/u/Limecode)\ **Post date:** [December 25, 2023, 6:03pm UTC](https://community.taiga.io/t/smtp-auth-extension-not-supported-by-server-when-trying-to-send-e-mail/2360/1 "2023-12-25T18:03:49Z")
Hey there, I recently installed Taiga and tried to setup the Outgoing E-Mail Connection since about 3 Weeks. I’m using MailCow as Mail Provider wich requires Plain Authentication wich may be the Problem here. The Question is how to activate plain auth in here? Or am I doing something wrong? **Configuration:** The E-Mail Backend usage of smtp or console just resulted in logging `module not found` So after grinding into Django mail in found this (Also saw it on a different topic here but not including the Auth Methods): `EMAIL_BACKEND: 'django.core.mail.backends.smtp.EmailBackend'` This worked cause with other things it was always not reaching. `EMAIL_USE_TLS: True` `EMAIL_USE_SSL: False` `EMAIL_PORT: 587` The Configuration is docker Environment more specific the inside `x-environment:` from the official taiga docker compose file. Here my Logs from using `./manage.py test_emails example@example.org` on taiga-back container. By the way same issues with starting the shell with `./manage.py shell` and importing the `smtp` module there and using the `send_mail` function. **Log:** `Traceback (most recent call last): File "/taiga-back/./manage.py", line 17, in execute_from_command_line(sys.argv) File "/opt/venv/lib/python3.11/site-packages/django/core/management/ __init__.py", line 419, in execute_from_command_line utility.execute() File "/opt/venv/lib/python3.11/site-packages/django/core/management/ __init__.py", line 413, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/opt/venv/lib/python3.11/site-packages/django/core/management/base.py", line 354, in run_from_argv self.execute(*args, **cmd_options) File "/opt/venv/lib/python3.11/site-packages/django/core/management/base.py", line 398, in execute output = self.handle(*args,**options) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/taiga-back/taiga/base/management/commands/test_emails.py", line 48, in handle email.send() File "/opt/venv/lib/python3.11/site-packages/django/core/mail/message.py", line 284, in send return self.get_connection(fail_silently).send_messages([self]) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/opt/venv/lib/python3.11/site-packages/django/core/mail/backends/smtp.py", line 102, in send_messages new_conn_created = self.open() ^^^^^^^^^^^ File "/opt/venv/lib/python3.11/site-packages/django/core/mail/backends/smtp.py", line 69, in open self.connection.login(self.username, self.password) File "/usr/local/lib/python3.11/smtplib.py", line 716, in login raise SMTPNotSupportedError(` `smtplib.SMTPNotSupportedError: SMTP AUTH extension not supported by server.` Thanks for you help! Always feel free to ask for information. ---
**Author:** ![david.barragan](https://dub1.discourse-cdn.com/flex017/user_avatar/community.taiga.io/david.barragan/32/293_2.png) [@david.barragan](https://community.taiga.io/u/david.barragan)\ **Post date:** [January 3, 2024, 11:52am UTC](https://community.taiga.io/t/smtp-auth-extension-not-supported-by-server-when-trying-to-send-e-mail/2360/2 "2024-01-03T11:52:05Z")
Hi @Limecode The error you describe is something returned by the SMTP mail server. Django tries to authenticate with the user/pass that you have indicated through port 587 (with TLS enabled) and the server indicates that this SMTP authentication system is not supported by the server. I have not used that SMTP server and I don’t know where the error could be. Apparently [your configuration is correct](https://docs.mailcow.email/client/client-manual/). ```auto EMAIL_BACKEND=smtp EMAIL_HOST=smtp.host.example.com # your host here EMAIL_PORT=587 EMAIL_HOST_USER=user # your user here EMAIL_HOST_PASSWORD=password # your password here EMAIL_DEFAULT_FROM=changeme@example.com # your sender email addreass EMAIL_USE_TLS=True EMAIL_USE_SSL=False ``` I’m sorry I can’t be more helpful.