diff --git a/bin/domain/imag-mail/src/main.rs b/bin/domain/imag-mail/src/main.rs
index b7d67f80..7a1246dd 100644
--- a/bin/domain/imag-mail/src/main.rs
+++ b/bin/domain/imag-mail/src/main.rs
@@ -17,6 +17,21 @@
 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 //
 
+#![deny(
+    non_camel_case_types,
+    non_snake_case,
+    path_statements,
+    trivial_numeric_casts,
+    unstable_features,
+    unused_allocation,
+    unused_import_braces,
+    unused_imports,
+    unused_must_use,
+    unused_mut,
+    unused_qualifications,
+    while_true,
+)]
+
 extern crate clap;
 #[macro_use] extern crate log;