I found a config js file : /opt/zimbra/jetty/webapps/zimbraAdmin/js/Admin_all.js
768: ZaSettings.ACCOUNTS_VIEW_MAIL_ENABLED = true;
I change it to false,
ZaSettings.ACCOUNTS_VIEW_MAIL_ENABLED = false;
then , I re-zip this file to Admin_all.js.zgz and reboot my server ,
so , I found the "View user's mail" button disapper from admin webpage,
I want to know if there is a problem or harm for my server ? thanks for any answer!