#34504: SSLCertVerificationError on outgoing emails for some mailboxes
-------------------------------------+-------------------------------------
Reporter: Kamen Kalchev | Owner: nobody
Type: Bug | Status: new
Component: Core (Mail) | Version: 4.2
Severity: Normal | Resolution:
Keywords: smtplib, ssl, | Triage Stage:
Django4.2 | Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Description changed by Kamen Kalchev:
Old description:
> It looks like this was previously reported in a different scenario and
> marked as fixed but is still not working as expected. Downgrading Django
> to 4.1.7 fixes the problem with outgoing messages to the mailbox.
>
> Environment:
>
> {{{
> Python3.10.6
> Django4.2
> }}}
>
>
> Link to previously reported issue:
> https://code.djangoproject.com/ticket/34386
>
> Stacktrace:
>
> {{{
> File "/usr/local/lib/env3/lib/python3.10/site-
> packages/django/core/mail/message.py" line 298 in send [args] [locals]
> return self.get_connection(fail_silently).send_messages([self])
> File "/usr/local/lib/env3/lib/python3.10/site-
> packages/django/core/mail/backends/smtp.py" line 127 in send_messages
> [args] [locals]
> new_conn_created = self.open()
> File "/usr/local/lib/env3/lib/python3.10/site-
> packages/django/core/mail/backends/smtp.py" line 85 in open [args]
> [locals]
> self.connection = self.connection_class(
> File "/usr/lib/python3.10/smtplib.py" line 1050 in __init__ [args]
> [locals]
> SMTP.__init__(self, host, port, local_hostname, timeout,
> File "/usr/lib/python3.10/smtplib.py" line 255 in __init__ [args]
> [locals]
> (code, msg) = self.connect(host, port)
> File "/usr/lib/python3.10/smtplib.py" line 341 in connect [args] [locals]
> self.sock = self._get_socket(host, port, self.timeout)
> File "/usr/lib/python3.10/smtplib.py" line 1057 in _get_socket [args]
> [locals]
> new_socket = self.context.wrap_socket(new_socket,
> File "/usr/lib/python3.10/ssl.py" line 513 in wrap_socket [args] [locals]
> return self.sslsocket_class._create(
> File "/usr/lib/python3.10/ssl.py" line 1071 in _create [args] [locals]
> self.do_handshake()
> File "/usr/lib/python3.10/ssl.py" line 1342 in do_handshake [args]
> [locals]
> self._sslobj.do_handshake()
> SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate
> verify failed: unable to get local issuer certificate (_ssl.c:997)
> }}}
New description:
It looks like this was previously reported in a different scenario and
marked as fixed but is still not working as expected. Downgrading Django
to 4.1.7 fixes the problem with outgoing messages to the mailbox.
Environment:
{{{
Python3.10.6
Django4.2
EMAIL_USE_SSL=True
EMAIL_USE_TLS=False
EMAIL_SSL_CERTFILE=Does not make a difference if we provide a file
location or not
EMAIL_SSL_KEYFILE=Does not make a difference if we provide a file location
or not
}}}
Link to previously reported issue:
https://code.djangoproject.com/ticket/34386
Stacktrace:
{{{
File "/usr/local/lib/env3/lib/python3.10/site-
packages/django/core/mail/message.py" line 298 in send [args] [locals]
return self.get_connection(fail_silently).send_messages([self])
File "/usr/local/lib/env3/lib/python3.10/site-
packages/django/core/mail/backends/smtp.py" line 127 in send_messages
[args] [locals]
new_conn_created = self.open()
File "/usr/local/lib/env3/lib/python3.10/site-
packages/django/core/mail/backends/smtp.py" line 85 in open [args]
[locals]
self.connection = self.connection_class(
File "/usr/lib/python3.10/smtplib.py" line 1050 in __init__ [args]
[locals]
SMTP.__init__(self, host, port, local_hostname, timeout,
File "/usr/lib/python3.10/smtplib.py" line 255 in __init__ [args] [locals]
(code, msg) = self.connect(host, port)
File "/usr/lib/python3.10/smtplib.py" line 341 in connect [args] [locals]
self.sock = self._get_socket(host, port, self.timeout)
File "/usr/lib/python3.10/smtplib.py" line 1057 in _get_socket [args]
[locals]
new_socket = self.context.wrap_socket(new_socket,
File "/usr/lib/python3.10/ssl.py" line 513 in wrap_socket [args] [locals]
return self.sslsocket_class._create(
File "/usr/lib/python3.10/ssl.py" line 1071 in _create [args] [locals]
self.do_handshake()
File "/usr/lib/python3.10/ssl.py" line 1342 in do_handshake [args]
[locals]
self._sslobj.do_handshake()
SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate
verify failed: unable to get local issuer certificate (_ssl.c:997)
}}}
--
--
Ticket URL: <https://code.djangoproject.com/ticket/34504#comment:1>
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