For Windows 2003 active directory the requirement is :
We need an automated report that sends instant reports as well as periodical
reports on successful domain logins, domain administrator logins and password
The instant report is for administrator logins. That is to say, every time the
anyone logs in to any of the PCs and servers in the domain, the domain
controller should email this incident to the set email address. The same
should be done if the administrator password is changed.
The periodical report is a weekly email consisting of All successful logins,
All failed login attempts and all password changes.
Both reports should give out all possible information of the incident
including the date,time,logged in PC or Server name.