2 files changed, 8 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 0720cfa..360ae63 100644
--- a/Makefile
+++ b/Makefile
@@ -30,6 +30,13 @@ else
 CFLAGS += "-Dmempool_unref(x)=pool_unref(x)"
 endif
 
+# backend error check
+ifeq ("$(BACKEND)", "")
+error:
+	@echo "Error! no backend configured"
+	@false
+endif
+
 # per-backend rules
 ifeq ("$(BACKEND)", "dspam-exec")
 objs += signature.o
diff --git a/defconfig b/defconfig
index 3ce8bdc..15ff857 100644
--- a/defconfig
+++ b/defconfig
@@ -27,7 +27,7 @@ DOVECOT_VERSION=1.0
 #  dspam-exec		- direct dspam training by calling dspam executable
 #  signature-log	- signature logging using dovecot's dict API
 #  mailtrain		- send mail to special addresses for training
-BACKEND=dspam-exec
+#BACKEND=dspam-exec
 #BACKEND=signature-log
 #BACKEND=mailtrain