It's possible to have more than one "change password URL" (zimbraChangePasswordURL) ?
I had virtuals domains (webmail.dom1.com, webmail.dom2.com, etc), and if I user logins from a different domain than the default when he tries to change the password zimbra ask again for authentication. Only works with the domain setted with zmprov mcf zimbraChangePasswordURL
http://webmail.domain.com/h/changepass
Regards.