[Rspamd] Less aggressive bayes

data/conf/rspamd/local.d/statistics_group.conf

@@ -1,10 +1,10 @@
 symbols = {
     "BAYES_SPAM" {
-        weight = 8.5;
+        weight = 2.5;
         description = "Message probably spam, probability: ";
     }
     "BAYES_HAM" {
-        weight = -12.5;
+        weight = -10.5;
         description = "Message probably ham, probability: ";
     }
 }