mail settings

I have a few domains setup that are using roundcube

the settings are www.example.com/webmail

this is working However I also want to be able to have

mail.example.com goto this same page.

right now it pulls up usermin email

How do I change this?

I typed it wrong. I want to be able to use webmail.example.com for my roundcube as well

www.example.com/webmail works correctly

I want both options

I figured it out. Changed the redirect in the apache settings.