The process by which the SMTP library authenticates you to the server
is known as ``Simple Authentication and Security Layer'' (SASL).
There are various SASL mechanisms, and this library supports three of
-them: CRAM-MD5, PLAIN, and LOGIN@, where the first uses a form of
+them: CRAM-MD5, PLAIN, and LOGIN, where the first uses a form of
encryption to obscure your password, while the other two do not. It
tries each of them, in that order, until one succeeds. You can assign
a specific authentication mechanism to a server by including a key