we are currently using squirellmail as our email interface and we use our web site where user enter their username and password so that user doesn't have to go to different web page.

we were wondering if this is possible and still legally possible. We are using open source version.

we are also wanting to put our company log(we do not want to change anything else) say one corner our company logo and other corner Zimbra's logo, is there any easy and legal way of doing this?

we appreciate your inputs and help

Thank you