@ModuleOption("the password to use to connect to the mail server ")
	public void setPassword(String password) {
		this.password = password;
	}
Typical options for configuring connection to a mail server. Defines the following properties:
<ul>
<li>host (localhost)</li>
<li>port (25)</li>
<li>username (none)</li>
<li>password (none)</li>
</ul>
extensions/spring-xd-extension-mail/src/main/java/org/springframework/xd/mail/MailServerMixin.java