Why does blackberry receive email I've sent from my outlook desktop computer?

Question

If I send an email from my desktop computer at home it comes through on my blackberry too.  In the user guide it says I should be able to choose Options, email settings, press the menu key and choose Folder Redirection and then uncheck or check the box beside my email address - in my blackberry (8320 version 4.5 supplied by Orange) the check box is unchecked but I cannot click to activate it or do anything and under the menu key there are no more options about Sent folder - can anyone help as Orange don't know how to do this and say it's something to do with outlook as when I send an email using the BT browser it doesn't come through to my blackberry.
Please can anyone help?

Answer 1

I have the same problem with my Pearl2 however it doesn't matter if I send an email from outlook or the browser I get the same result. I'm with O2 and my email is with Sky (which is really google mail). I contacted Sky about it they blamed outlook even though I said it happened without outlook.
I set up a Hotmail account and it's fine so that tells me it is something to do with either the way the BB service from O2 connects to Sky or the way sky are handling things.
What I did notice is if you look at the message headers it looks to me like they are two different emails.
The first email is from my email address to the receipient,
Reply-To: <[email protected]>
From: "Martin" <[email protected]>
To: <[email protected]>
References: <003b01c96abb$8d20b790$a76226b0$@com>
In-Reply-To: <003b01c96abb$8d20b790$a76226b0$@com 
the second email says
Return-Path: <[email protected]>
Received: from computername (5ad296e4.bb.sky.com [90.210.150.228]) by
 mx.google.com with ESMTPS id s1sm38904uge.27.2009.01.12.14.29.41
 (version=TLSv1/SSLv3 cipher=RC4-MD5); Mon, 12 Jan 2009 14:29:43 -0800 (PST)
Reply-To: <[email protected]>
From: "Martin" <[email protected]>
To: <[email protected]>