webmail redirect is not working

I set up URL redirect for webmail.domainname.com to http://www.domainname.com/roundcube in servertemplate->default settings -> Apache website, but it is not working. Also I have set Redirect webmail to usermin to No.

Typing webmail.domainname.com leads to usermin login window (https://domainname.com:20000)

I restarted apache2, webmin, cleared browser cookies, but it is still pointing to usermin login. Tried with different browsers, but same result.

Pls. help

those are defined in virtualmin… you can edit them… it is in apache configs…