iNotes Web Access Password Checking

I have enabled password checking and it works fine for users who are on a client and have an ID file and the ID & Internet password are synch’d. However, for users whose sole means of using mail is via iNotes Web Access there is no way to use a change interval, grace period and password digest. The only option is to force a password change on authentication. This is not an option because we can’t expect our web access users to change their password everytime they login. I was just curious if anyone has developed a way to get around this? Any info you can share would be greatly appreciated