diff --git a/README.md b/README.md
index b09077f8b..994391c05 100644
--- a/README.md
+++ b/README.md
@@ -80,10 +80,20 @@ The plugin offers some integrations listed below:
 
 		```yaml
 		EOX_CORE_SENTRY_INTEGRATION_DSN: <your DSN value>
+		EOX_CORE_SENTRY_IGNORED_ERRORS: [] # optional
 		```
 
 	By default, **EOX_CORE_SENTRY_INTEGRATION_DSN** setting is None, which disables the sentry integration.
 
+	**EOX_CORE_SENTRY_IGNORED_ERRORS** is optional. It is a list of exceptions that wants to be ignored by sentry. For instance, it can be defined as:
+
+		```yaml
+		EOX_CORE_SENTRY_IGNORED_ERRORS: [
+			'xmodule.exceptions.NotFoundError',
+			'openedx.core.djangoapps.user_authn.exceptions.AuthFailedError',
+		]
+		```
+
 ## Course Management automation compilation
 
 We use webpack to bundle the React js application and its dependencies,
diff --git a/eox_core/__init__.py b/eox_core/__init__.py
index 47d720dfc..4c2122585 100644
--- a/eox_core/__init__.py
+++ b/eox_core/__init__.py
@@ -1,4 +1,4 @@
 """
 Init for main eox-core app
 """
-__version__ = '2.8.1'
+__version__ = '2.9.0'
diff --git a/eox_core/integrations/__init__.py b/eox_core/integrations/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/eox_core/integrations/sentry.py b/eox_core/integrations/sentry.py
new file mode 100644
index 000000000..2e7f3b27b
--- /dev/null
+++ b/eox_core/integrations/sentry.py
@@ -0,0 +1,41 @@
+"""
+This file implements utils used for sentry integration.
+
+See: https://github.com/eduNEXT/eox-core#integrations-with-third-party-services
+"""
+import importlib
+
+from django.conf import settings
+
+
+def load_class(full_class_string):
+    """
+    dynamically load a class from a string
+    """
+
+    class_data = full_class_string.split(".")
+    module_path = ".".join(class_data[:-1])
+    class_str = class_data[-1]
+
+    module = importlib.import_module(module_path)
+    return getattr(module, class_str)
+
+
+def before_send(event, hint):
+    """
+    Workaround to prevent certain exceptions to be sent to sentry.io
+    See: https://github.com/getsentry/sentry-python/issues/149#issuecomment-434448781
+    """
+    ignored_errors = ()
+    for error in settings.SENTRY_IGNORED_ERRORS:
+        try:
+            error_class = load_class(error)
+            ignored_errors += (error_class,)
+        except Exception:  # pylint: disable=broad-except
+            pass
+    if 'exc_info' in hint and ignored_errors:
+        _exc_type, exc_value, _tb = hint['exc_info']
+        if isinstance(exc_value, ignored_errors):
+            return None
+
+    return event
diff --git a/eox_core/settings/aws.py b/eox_core/settings/aws.py
index 9ec83a60f..15a56acb1 100644
--- a/eox_core/settings/aws.py
+++ b/eox_core/settings/aws.py
@@ -119,8 +119,15 @@ def plugin_settings(settings):  # pylint: disable=function-redefined
         'EOX_CORE_SENTRY_INTEGRATION_DSN',
         settings.EOX_CORE_SENTRY_INTEGRATION_DSN
     )
+    settings.EOX_CORE_SENTRY_IGNORED_ERRORS = getattr(settings, 'ENV_TOKENS', {}).get(
+        'EOX_CORE_SENTRY_IGNORED_ERRORS',
+        settings.EOX_CORE_SENTRY_IGNORED_ERRORS
+    )
+
     if sentry_sdk is not None and sentry_integration_dsn is not None:
+        from eox_core.integrations.sentry import before_send
         sentry_sdk.init(
+            before_send=before_send,
             dsn=sentry_integration_dsn,
             integrations=[DjangoIntegration()],
 
diff --git a/eox_core/settings/common.py b/eox_core/settings/common.py
index 9c952031e..2648756d7 100644
--- a/eox_core/settings/common.py
+++ b/eox_core/settings/common.py
@@ -49,3 +49,4 @@ def plugin_settings(settings):
 
     # Sentry Integration
     settings.EOX_CORE_SENTRY_INTEGRATION_DSN = None
+    settings.EOX_CORE_SENTRY_IGNORED_ERRORS = []
diff --git a/setup.cfg b/setup.cfg
index 351320223..9e4ca35ad 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 2.8.1
+current_version = 2.9.0
 commit = True
 tag = True