What is my Postini Password?
It is your email password.
When you log on to https://login.postini.com, Postini verifies your password by logging in and out quickly to your mail server using email address and password you've entered. This way your username and password are always your email address and password and you don't have to worry about changing your password on the Postini portal if you change your password on the mail server.
Log in to Postini at https://login.postini.com using your email address email@example.com and the password that you use to pick up your mail.
Note: if you have your firstname.lastname@example.org mail mapped to a mail.his.com mailbox, log in using the mail.his.com username (email@example.com) and password.