Windows 7: Switch User / Lock

I leave my PC on all the time and I was wondering which function to use to prevent unarthorized use while I was away.

My main concern is to still have Outlook 2010 send/receive email while the PC is secured.

Can I still send email automatically (appointments) in Outlook 2010 when I click on Lock or Switch User?

Not much information on this subject and not sure if this is the right category.

Any help is appreciated so I don tmiss any Doctors appointments.

Butch

You can lock the computer and still receive emails. You cant put it to sleep and get them. You cant send new ones (not yet composed) without unlocking.

Ok.
Thank you.

I did all the power management advanced settings to make sure it doesnt sleep.

Sometimes it just doesnt seem to send emails to my cell phone but the notification is there when I go to Outlook.

Maybe I overlooked a setting.

But thanks. This is a start.

Butch