Typo

Author: javiereguiluz

components/mailer.rst

@@ -128,7 +128,7 @@ A round-robin transport is configured with two or more transports joined by the
     $dsn = 'api://id@postmark && smtp://key@sendgrid'
 
 The mailer will start using the first transport and if it fails, it will retry
-the same delivery with the next transports untile one of them succeeds (or until
+the same delivery with the next transports until one of them succeeds (or until
 all of them fail).
 
 Sending emails asynchronously