Hi,

I’m getting this error when I try to send an email via my server on Django.

‘Failed to send email: SMTP AUTH extension not supported by server.’

The settings are all in order, I have set EMAIL_USE_TLS = True but the issue still persists?

Is there anyone that has encountered this issue before?

Any assistance will be appreaciated.

  • Thanks Doc. I did manage to find a solution. send_mail leverages smtplib, but only assumes user use LOGI AUTH after ehlo and STARTTLS. So I created a custom backend that uses PLAIN AUTH Method. I’ll leave the Code here if anybody needs it. Thanks.

    from django.core.mail.backends.smtp import EmailBackend
    import base64

    class PlainAuthEmailBackend(EmailBackend):
    def _send(self, email_message):

    Override the _send method to use PLAIN authentication

    if not self.connection:
    self.open()
    if not self.connection:
    return False

        # Encode credentials in PLAIN format
    auth_string = f'\0{self.username}\0{self.password}'
    auth_string_encoded = base64.b64encode(auth_string.encode('utf-8')).decode('utf-8')
    print(f"Auth Creds: {auth_string_encoded}")
    # Send AUTH PLAIN command
    self.connection.docmd("AUTH PLAIN", auth_string_encoded)

    # Send the email
    return super()._send(email_message)

    Thanks Doc. I did manage to find a solution. send_mail leverages smtplib, but only assumes user use LOGI AUTH after ehlo and STARTTLS. So I created a custom backend that uses PLAIN AUTH Method. I’ll leave the Code here if anybody needs it. Thanks.

    from django.core.mail.backends.smtp import EmailBackend
    import base64

    class PlainAuthEmailBackend(EmailBackend):
    def _send(self, email_message):

    Override the _send method to use PLAIN authentication

    if not self.connection:
    self.open()
    if not self.connection:
    return False

        # Encode credentials in PLAIN format
    auth_string = f'\0{self.username}\0{self.password}'
    auth_string_encoded = base64.b64encode(auth_string.encode('utf-8')).decode('utf-8')
    print(f"Auth Creds: {auth_string_encoded}")
    # Send AUTH PLAIN command
    self.connection.docmd("AUTH PLAIN", auth_string_encoded)

    # Send the email
    return super()._send(email_message)

  • DocFraggle

    • Community Hero
    Moolevel 278
  • Post #2

I guess you’re using port 25, but for auth you have to use 587

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I still get the same message with Port 587, error
:
“Failed to send email: SMTP AUTH extension not supported by server.”

  • DocFraggle

    • Community Hero
    Moolevel 278
  • Post #4

Hmm, check this thread then:

Stack Overflow Icon Trouble with Django sending email though smtp.gmail.com

Stack Overflow Icon Stack Overflow
Trouble with Django sending email though smtp.gmail.com
I am trying to configure Django's send_email so I can send password reset emails to users. So far I've had no luck on getting it to work. I've set up a basic Gmail account (no Google App etc) and ...
Stack Overflow

They’re talking about

EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'

I can’t help you otherwise, I don’t use Django

Thanks Doc. I did manage to find a solution. send_mail leverages smtplib, but only assumes user use LOGI AUTH after ehlo and STARTTLS. So I created a custom backend that uses PLAIN AUTH Method. I’ll leave the Code here if anybody needs it. Thanks.

from django.core.mail.backends.smtp import EmailBackend
import base64

class PlainAuthEmailBackend(EmailBackend):
def _send(self, email_message):

Override the _send method to use PLAIN authentication

if not self.connection:
self.open()
if not self.connection:
return False

    # Encode credentials in PLAIN format
    auth_string = f'\0{self.username}\0{self.password}'
    auth_string_encoded = base64.b64encode(auth_string.encode('utf-8')).decode('utf-8')
    print(f"Auth Creds: {auth_string_encoded}")
    # Send AUTH PLAIN command
    self.connection.docmd("AUTH PLAIN", auth_string_encoded)

    # Send the email
    return super()._send(email_message)

Thanks Doc. I did manage to find a solution. send_mail leverages smtplib, but only assumes user use LOGI AUTH after ehlo and STARTTLS. So I created a custom backend that uses PLAIN AUTH Method. I’ll leave the Code here if anybody needs it. Thanks.

from django.core.mail.backends.smtp import EmailBackend
import base64

class PlainAuthEmailBackend(EmailBackend):
def _send(self, email_message):

Override the _send method to use PLAIN authentication

if not self.connection:
self.open()
if not self.connection:
return False

    # Encode credentials in PLAIN format
    auth_string = f'\0{self.username}\0{self.password}'
    auth_string_encoded = base64.b64encode(auth_string.encode('utf-8')).decode('utf-8')
    print(f"Auth Creds: {auth_string_encoded}")
    # Send AUTH PLAIN command
    self.connection.docmd("AUTH PLAIN", auth_string_encoded)

    # Send the email
    return super()._send(email_message)
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