how to launch a (bash) script at user web interface login?

[shadowscheme]

Dear all,

I'd like to launch a bash script at EVERY user login on Zimbra web interface. I need to execute a script which takes as parameters the login and password of the user.

I looked in the forum, and found nothing, but perhaps with the wrong keywords? I posted this message on the Administrators forum, but perhaps it wasn´t the right place, do I need to extend/modify the login mechanism?

can someone help me?

thank you!!!!