Restriction access via shell

I have some users who i gave a shell to of /etc/ppp/ppp-dynamic and it is valid in the /etc/shells and some that have a /bin/email-only which is not valid in the /etc/shell I just realized that some of those that are email-only are able to log on. How can I stop that? ----------------------------------------------------------------- This mail sent through Rural Communications Webmail http://www.myrural.com With Service in St. Joseph County Michigan