I am having the issue with Mailman Archive not working. Kindly help me to solve 
the issue.  


Errors Found in:-
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
requests.exceptions.SSLError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Connection to HyperKitty failed: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Exception in the HyperKitty archiver: 
HTTPSConnectionPool(host='list1.iitm.ac.in', port=443): Max retries exceeded 
with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))
Sep 23 16:58:08 2025 (173216) Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 705, in 
urlopen
    httplib_response = self._make_request(
                       ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 388, in 
_make_request
    self._validate_conn(conn)
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 1050, 
in _validate_conn
    conn.connect()
  File "/usr/lib/python3/dist-packages/urllib3/connection.py", line 414, in 
connect
    self.sock = ssl_wrap_socket(
                ^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 449, in 
ssl_wrap_socket
    ssl_sock = _ssl_wrap_socket_impl(
               ^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/ssl_.py", line 493, in 
_ssl_wrap_socket_impl
    return ssl_context.wrap_socket(sock, server_hostname=server_hostname)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 517, in wrap_socket
    return self.sslsocket_class._create(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/ssl.py", line 1108, in _create
    self.do_handshake()
  File "/usr/lib/python3.11/ssl.py", line 1379, in do_handshake
    self._sslobj.do_handshake()
ssl.SSLCertVerificationError: [SSL: CERTIFICATE_VERIFY_FAILED] certificate 
verify failed: unable to get local issuer certificate (_ssl.c:992)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 489, in send
    resp = conn.urlopen(
           ^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/connectionpool.py", line 789, in 
urlopen
    retries = retries.increment(
              ^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/urllib3/util/retry.py", line 594, in 
increment
    raise MaxRetryError(_pool, url, error or ResponseError(cause))
urllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='list1.iitm.ac.in', 
port=443): Max retries exceeded with url: 
/hyperkitty/api/mailman/archive?key=n%2FZZnR5bRgNdUEyNK4p731C1%2BgWJLw0%2F 
(Caused by SSLError(SSLCertVerificationError(1, '[SSL: 
CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local 
issuer certificate (_ssl.c:992)')))

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 154, in _archive_message
    url = self._send_message(mlist, msg)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File 
"/usr/local/lib/python3.11/dist-packages/mailman_hyperkitty-1.1.0-py3.11.egg/mailman_hyperkitty/__init__.py",
 line 198, in _send_message
    result = requests.post(
             ^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 115, in post
    return request("post", url, data=data, json=json, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/api.py", line 59, in request
    return session.request(method=method, url=url, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 587, in 
request
    resp = self.send(prep, **send_kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/sessions.py", line 701, in send
    r = adapter.send(request, **kwargs)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/requests/adapters.py", line 563, in send
    raise SSLError(e, request=request)
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