diff --git a/passbook/core/exceptions.py b/passbook/core/exceptions.py
index 53961e631..01fc51bfe 100644
--- a/passbook/core/exceptions.py
+++ b/passbook/core/exceptions.py
@@ -1,5 +1,6 @@
 """passbook core exceptions"""
+from passbook.lib.sentry import SentryIgnoredException
 
 
-class PropertyMappingExpressionException(Exception):
+class PropertyMappingExpressionException(SentryIgnoredException):
     """Error when a PropertyMapping Exception expression could not be parsed or evaluated."""
diff --git a/passbook/factors/password/exceptions.py b/passbook/factors/password/exceptions.py
index f561ec5ac..ca56c03c0 100644
--- a/passbook/factors/password/exceptions.py
+++ b/passbook/factors/password/exceptions.py
@@ -1,7 +1,8 @@
 """passbook password policy exceptions"""
+from passbook.lib.sentry import SentryIgnoredException
 
 
-class PasswordPolicyInvalid(Exception):
+class PasswordPolicyInvalid(SentryIgnoredException):
     """Exception raised when a Password Policy fails"""
 
     messages = []
diff --git a/passbook/lib/sentry.py b/passbook/lib/sentry.py
index 886696e26..453df529e 100644
--- a/passbook/lib/sentry.py
+++ b/passbook/lib/sentry.py
@@ -4,6 +4,10 @@ from structlog import get_logger
 LOGGER = get_logger()
 
 
+class SentryIgnoredException(Exception):
+    """Base Class for all errors that are supressed, and not sent to sentry."""
+
+
 def before_send(event, hint):
     """Check if error is database error, and ignore if so"""
     from django_redis.exceptions import ConnectionInterrupted
@@ -29,6 +33,7 @@ def before_send(event, hint):
         ValidationError,
         OSError,
         RedisError,
+        SentryIgnoredException,
     )
     if "exc_info" in hint:
         _exc_type, exc_value, _ = hint["exc_info"]
diff --git a/passbook/policies/exceptions.py b/passbook/policies/exceptions.py
index 5ff1f4d45..ec27684dd 100644
--- a/passbook/policies/exceptions.py
+++ b/passbook/policies/exceptions.py
@@ -1,5 +1,6 @@
 """policy exceptions"""
+from passbook.lib.sentry import SentryIgnoredException
 
 
-class PolicyException(Exception):
+class PolicyException(SentryIgnoredException):
     """Exception that should be raised during Policy Evaluation, and can be recovered from."""
diff --git a/passbook/providers/saml/exceptions.py b/passbook/providers/saml/exceptions.py
index a78218ca6..81b0b1b39 100644
--- a/passbook/providers/saml/exceptions.py
+++ b/passbook/providers/saml/exceptions.py
@@ -1,5 +1,6 @@
 """passbook SAML IDP Exceptions"""
+from passbook.lib.sentry import SentryIgnoredException
 
 
-class CannotHandleAssertion(Exception):
+class CannotHandleAssertion(SentryIgnoredException):
     """This processor does not handle this assertion."""
diff --git a/passbook/sources/saml/exceptions.py b/passbook/sources/saml/exceptions.py
index 7f91e2bad..2ea148df8 100644
--- a/passbook/sources/saml/exceptions.py
+++ b/passbook/sources/saml/exceptions.py
@@ -1,9 +1,10 @@
 """passbook saml source exceptions"""
+from passbook.lib.sentry import SentryIgnoredException
 
 
-class MissingSAMLResponse(Exception):
+class MissingSAMLResponse(SentryIgnoredException):
     """Exception raised when request does not contain SAML Response."""
 
 
-class UnsupportedNameIDFormat(Exception):
+class UnsupportedNameIDFormat(SentryIgnoredException):
     """Exception raised when SAML Response contains NameID Format not supported."""
diff --git a/passbook/sources/saml/processors/base.py b/passbook/sources/saml/processors/base.py
index a094b32bf..db12f35dc 100644
--- a/passbook/sources/saml/processors/base.py
+++ b/passbook/sources/saml/processors/base.py
@@ -37,7 +37,7 @@ class Processor:
             raise MissingSAMLResponse("Request does not contain 'SAMLResponse'")
         # relay_state = request.POST.get('RelayState', None)
         # Check if response is compressed, b64 decode it
-        self._root_xml = response = decode_base64_and_inflate(raw_response)
+        self._root_xml = decode_base64_and_inflate(raw_response)
         self._root = ElementTree.fromstring(self._root_xml)
         # Verify signed XML
         self._verify_signed()