fix smtp port (#94)

* Respect smtp port when sending email

(cherry picked from commit ef89cbd30296389b7d363ecbb03080081304d98e)

* smtp: remove explicit timeout

Also remove redundant variable

src/smtp.rs

@@ -22,8 +22,8 @@ pub fn send(account: &Account, msg: &lettre::Message) -> Result<()> {
     };
 
     smtp_relay(&account.smtp_host)?
+        .port(account.smtp_port)
         .credentials(account.smtp_creds()?)
-        .timeout(Some(Duration::new(1000, 0)))
         .build()
         .send(msg)?;