Making its appearance again in Mountain Lion is the ability to assign a keyboard shortcut that'll enter an outgoing email account for a message you are composing in Mail. This feature was available in earlier versions of OS X, but was removed in OS X Lion. Now that the shortcut is back in Mountain Lion, it's time to revisit this feature and show you how to set it up. You can use these instructions below to assign the shortcut and use it when composing an email.
Before you get started, you need the name of your email account as it appears in the Mail application. If you don't know these details, then you should open Mail, compose a message and click on the From field to see the available email accounts. The syntax should look something like this:
