Outlook Express Header Information - Change

Hi,
I travel and work for extended durations in a multitude of locations.
Currently I'm in China.

I use my Company Notebook.
For Company correspondence I use Outlook through a VPN, and for my personal mail I use Outlook Express with Gmail.
When using OE it adds a message ID to the header that consists of a long string of characters follwed by @uk.********.com ******** = my company name.

Is there any way that I can change this ID so that it does not identify my mail with my companies name?