diff --git a/services/src/main/java/org/keycloak/authentication/authenticators/browser/AbstractUsernameFormAuthenticator.java b/services/src/main/java/org/keycloak/authentication/authenticators/browser/AbstractUsernameFormAuthenticator.java
index 68b036fa18..9cae5ef12c 100755
--- a/services/src/main/java/org/keycloak/authentication/authenticators/browser/AbstractUsernameFormAuthenticator.java
+++ b/services/src/main/java/org/keycloak/authentication/authenticators/browser/AbstractUsernameFormAuthenticator.java
@@ -1,6 +1,5 @@
 package org.keycloak.authentication.authenticators.browser;
 
-import org.jboss.logging.Logger;
 import org.keycloak.authentication.AbstractFormAuthenticator;
 import org.keycloak.authentication.AuthenticationFlowError;
 import org.keycloak.authentication.AuthenticationFlowContext;
@@ -11,6 +10,7 @@ import org.keycloak.models.UserCredentialModel;
 import org.keycloak.models.UserModel;
 import org.keycloak.models.utils.KeycloakModelUtils;
 import org.keycloak.representations.idm.CredentialRepresentation;
+import org.keycloak.services.ServicesLogger;
 import org.keycloak.services.managers.AuthenticationManager;
 import org.keycloak.services.messages.Messages;
 
@@ -25,7 +25,7 @@ import java.util.List;
  */
 public abstract class AbstractUsernameFormAuthenticator extends AbstractFormAuthenticator {
 
-    private static final Logger logger = Logger.getLogger(AbstractUsernameFormAuthenticator.class);
+    private static final ServicesLogger logger = ServicesLogger.ROOT_LOGGER;
 
     public static final String REGISTRATION_FORM_ACTION = "registration_form";
     public static final String ATTEMPTED_USERNAME = "ATTEMPTED_USERNAME";
@@ -109,7 +109,7 @@ public abstract class AbstractUsernameFormAuthenticator extends AbstractFormAuth
         try {
             user = KeycloakModelUtils.findUserByNameOrEmail(context.getSession(), context.getRealm(), username);
         } catch (ModelDuplicateException mde) {
-            logger.error(mde.getMessage(), mde);
+            logger.modelDuplicateException(mde);
 
             // Could happen during federation import
             if (mde.getDuplicateFieldName() != null && mde.getDuplicateFieldName().equals(UserModel.EMAIL)) {
diff --git a/services/src/main/java/org/keycloak/authentication/authenticators/browser/SpnegoAuthenticator.java b/services/src/main/java/org/keycloak/authentication/authenticators/browser/SpnegoAuthenticator.java
index f1c0128661..ea6e27ac38 100755
--- a/services/src/main/java/org/keycloak/authentication/authenticators/browser/SpnegoAuthenticator.java
+++ b/services/src/main/java/org/keycloak/authentication/authenticators/browser/SpnegoAuthenticator.java
@@ -1,6 +1,5 @@
 package org.keycloak.authentication.authenticators.browser;
 
-import org.jboss.logging.Logger;
 import org.jboss.resteasy.spi.HttpRequest;
 import org.keycloak.authentication.AuthenticationFlowError;
 import org.keycloak.authentication.AuthenticationFlowContext;
@@ -13,6 +12,7 @@ import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;
 import org.keycloak.models.UserCredentialModel;
 import org.keycloak.models.UserModel;
+import org.keycloak.services.ServicesLogger;
 import org.keycloak.services.messages.Messages;
 
 import javax.ws.rs.core.HttpHeaders;
@@ -27,7 +27,7 @@ import java.util.Map;
  */
 public class SpnegoAuthenticator extends AbstractUsernameFormAuthenticator implements Authenticator{
     public static final String KERBEROS_DISABLED = "kerberos_disabled";
-    protected static Logger logger = Logger.getLogger(SpnegoAuthenticator.class);
+    protected static ServicesLogger logger = ServicesLogger.ROOT_LOGGER;
 
     @Override
     public boolean requiresUser() {
diff --git a/services/src/main/java/org/keycloak/authentication/authenticators/browser/UsernamePasswordForm.java b/services/src/main/java/org/keycloak/authentication/authenticators/browser/UsernamePasswordForm.java
index a2581e3350..bbf36dc5c1 100755
--- a/services/src/main/java/org/keycloak/authentication/authenticators/browser/UsernamePasswordForm.java
+++ b/services/src/main/java/org/keycloak/authentication/authenticators/browser/UsernamePasswordForm.java
@@ -1,6 +1,5 @@
 package org.keycloak.authentication.authenticators.browser;
 
-import org.jboss.logging.Logger;
 import org.jboss.resteasy.specimpl.MultivaluedMapImpl;
 import org.keycloak.authentication.AuthenticationFlowContext;
 import org.keycloak.authentication.AuthenticationProcessor;
@@ -10,6 +9,7 @@ import org.keycloak.models.KeycloakSession;
 import org.keycloak.models.RealmModel;
 import org.keycloak.models.UserModel;
 import org.keycloak.protocol.oidc.OIDCLoginProtocol;
+import org.keycloak.services.ServicesLogger;
 import org.keycloak.services.managers.AuthenticationManager;
 
 import javax.ws.rs.core.MultivaluedMap;
@@ -20,7 +20,7 @@ import javax.ws.rs.core.Response;
  * @version $Revision: 1 $
  */
 public class UsernamePasswordForm extends AbstractUsernameFormAuthenticator implements Authenticator {
-    protected static Logger logger = Logger.getLogger(UsernamePasswordForm.class);
+    protected static ServicesLogger log = ServicesLogger.ROOT_LOGGER;
 
     @Override
     public void action(AuthenticationFlowContext context) {
diff --git a/services/src/main/java/org/keycloak/services/ServicesLogger.java b/services/src/main/java/org/keycloak/services/ServicesLogger.java
index 7eefbbd471..e6d09f220e 100644
--- a/services/src/main/java/org/keycloak/services/ServicesLogger.java
+++ b/services/src/main/java/org/keycloak/services/ServicesLogger.java
@@ -27,6 +27,7 @@ import org.jboss.logging.annotations.MessageLogger;
 import static org.jboss.logging.Logger.Level.ERROR;
 import static org.jboss.logging.Logger.Level.INFO;
 import static org.jboss.logging.Logger.Level.WARN;
+import org.keycloak.models.ModelDuplicateException;
 
 
 /**
@@ -131,7 +132,7 @@ public interface ServicesLogger extends BasicLogger {
     @Message(id=23, value="Smtp is not configured for the realm. Ignoring email verification authenticator")
     void smtpNotConfigured();
 
-    @LogMessage(level = WARN)
-    @Message(id=23, value="Smtp is not configured for the realm. Ignoring email verification authenticator")
-    void smtpNotConfigured();
+    @LogMessage(level = ERROR)
+    @Message(id=24, value="")
+    void modelDuplicateException(@Cause ModelDuplicateException mde);
 }