diff --git a/impresso/client.py b/impresso/client.py
index 5fa0b9c..de470b1 100644
--- a/impresso/client.py
+++ b/impresso/client.py
@@ -11,6 +11,7 @@
 from impresso.api_client import AuthenticatedClient
 from impresso.client_base import ImpressoApiResourcesBase
 from impresso.config_file import DEFAULT_API_URL, ImpressoPyConfig
+from impresso.util.error import handle_known_errors
 from impresso.util.token import get_jwt_status
 
 logger = logging.getLogger(__name__)
@@ -28,6 +29,9 @@ def _is_localhost_netloc(netloc: str) -> bool:
 def _log_non_2xx(response: httpx.Response) -> None:
     if response.status_code >= 400:
         response.read()
+
+        handle_known_errors(response.status_code, response.text)
+
         logging.error(
             f"Received error response ({response.status_code}): {response.text}"
         )
diff --git a/impresso/util/error.py b/impresso/util/error.py
index e55c47e..0c7ab47 100644
--- a/impresso/util/error.py
+++ b/impresso/util/error.py
@@ -2,6 +2,7 @@
 
 from impresso.api_client.models.error import Error as ApiError
 from impresso.api_models import Error
+import re
 
 IT = TypeVar("IT")
 
@@ -25,3 +26,13 @@ def raise_for_error(result: ApiError | IT) -> IT:
         raise ImpressoError(error)
     else:
         return result
+
+
+def handle_known_errors(status_code: int, response_text: str) -> None:
+    # Known firewall errors
+    match = re.search(r"Your support ID is: ([^\s<>]+)", response_text)
+    if match:
+        support_id = match.group(1)
+        raise ValueError(
+            f"Request rejected. Please contact Impresso team on info@impresso-project.ch quoting the ID: {support_id}."
+        )
diff --git a/pyproject.toml b/pyproject.toml
index 3e0be2b..a2dd7d5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,7 +22,7 @@ packages = [
 ]
 readme = "README.md"
 repository = "https://github.com/impresso/impresso-py"
-version = "0.9.9"
+version = "0.9.10"
 
 [tool.poetry.urls]
 Endpoint = "https://impresso-project.ch/public-api"