Not sure what you mean. Do you mean will it show in out/sent folder of your mailbox via laptop etc.? I don't think there's a way to do it. I know there a lot help section concerning email on here so you may be able to find it. If it's just a copy you want you could always bcc yourself and it'll show in your in box.
In email settings, for "Save Copy in Sent Folder" select "Yes." Email sent from your BB will show up in the Sent Items folder in Outlook. One caveat: I don't know if this works for BIS mail. My outlook is on BES.
Log into your BIS. Go that email account and click Edit.
In the box next to Auto BCC, type in your email address and click Save.
Now emails that you send from the device will be sent to your email address. You will need to move them from the Inbox to the Sent folder either manually or with a rule.
And be sure to also set up a filter with your email address so that the messages don't get pushed back to the device.
