diff --git a/examples/client.rs b/examples/client.rs
index 459b186..e05459c 100644
--- a/examples/client.rs
+++ b/examples/client.rs
@@ -22,7 +22,7 @@ use getopts::{optopt, optflag, getopts, OptGroup, usage};
 use smtp::client::Client;
 use smtp::error::SmtpResult;
 
-fn sendmail(source_address: &str, recipient_addresses: Vec<&str>, message: &str,
+fn sendmail(source_address: &str, recipient_addresses: &[&str], message: &str,
         server: &str, port: Port, my_hostname: &str) -> SmtpResult {
     let mut email_client: Client<TcpStream> =
         Client::new(
@@ -99,7 +99,7 @@ fn main() {
         // sender
         matches.opt_str("r").unwrap().as_slice(),
         // recipients
-        recipients,
+        recipients.as_slice(),
         // message content
         message.as_slice(),
         // server
diff --git a/src/client/mod.rs b/src/client/mod.rs
index daa02ec..e6b1ed6 100644
--- a/src/client/mod.rs
+++ b/src/client/mod.rs
@@ -97,7 +97,7 @@ impl<S: Connecter + ClientStream + Clone> Client<S> {
 
     /// Sends an email
     pub fn send_mail<S>(&mut self, from_address: &str,
-                        to_addresses: Vec<&str>, message: &str) -> SmtpResult {
+                        to_addresses: &[&str], message: &str) -> SmtpResult {
 
         // Connect to the server
         try!(self.connect());
diff --git a/src/lib.rs b/src/lib.rs
index 6895cbe..310a1f6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -40,10 +40,10 @@
 //!     Client::new(
 //!         ("localhost", SMTP_PORT), // server socket
 //!         Some("myhost")            // my hostname (default is localhost)
-//! );
+//!     );
 //! let result = email_client.send_mail::<TcpStream>(
 //!     "user@example.com",       // sender (reverse-path)
-//!     vec!["user@example.org"], // recipient list
+//!     ["user@example.org"], // recipient list
 //!     "Test email"              // email content
 //! );
 //! ```
@@ -61,7 +61,7 @@
 //!     Client::new(
 //!         ("localhost", SMTP_PORT), // server socket
 //!         Some("myhost")            // my hostname (default is localhost)
-//! );
+//!     );
 //! let _ = email_client.connect();
 //! let _ = email_client.ehlo::<TcpStream>();
 //! let _ = email_client.rcpt::<TcpStream>("user@example.org");