diff --git a/src/lib.rs b/src/lib.rs
index 05dbd57..3dc57df 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -113,7 +113,7 @@
 #![experimental]
 
 #![feature(phase, macro_rules, default_type_params)]
-//#![deny(missing_docs, warnings)]
+#![deny(missing_docs, warnings)]
 
 #![feature(phase)] #[phase(plugin, link)] extern crate log;
 
diff --git a/src/sendable_email.rs b/src/sendable_email.rs
index c06d3ef..9d8728e 100644
--- a/src/sendable_email.rs
+++ b/src/sendable_email.rs
@@ -9,10 +9,12 @@
 
 //! SMTP sendable email
 
-/// Converts to an `Header`
+/// Email sendable by an SMTP client
 pub trait SendableEmail {
-    /// Converts to an `Header` struct
+    /// From address
     fn from_address(&self) -> String;
+    /// To addresses
     fn to_addresses(&self) -> Vec<String>;
+    /// Message content
     fn message(&self) -> String;
 }