When logging into my On Demand product, I enter my User Name and Password and I get a message stating: "Invalid Username or Password . Please resubmit credentials"
If you have ldap authentication setup and attempt to login as one of the ldap users with a bad password then agile makes two attempts to connect and causes the users account to be locked out in Active Directory before the domain group policies limit. In other words if your group policy says accounts should be locked out after 3 failed attempts you will actually get locked out if you put in the wrong password in Agile just twice because it tries 2 times for each, so four tries with just two failed attempts.
When you receive email notifications from Agile there are sometimes links that will go directly to the Agile server like the password reset email notification. This document describes how to change the url that gets created in those emails to have a fully qualified name for the server.
When you receive email notifications from Mariner/PPM or Agile there are sometimes links that will go directly to the server like the password reset email notification. If you are using Agile there is an option when you right click on certain items called "Copy URL".