Select sending account for custom e-mail form

[Mõbius]

Hi,

is it possible to select the sending e-mail account from a custom form's vba
code?

I have Outlook 2007 and various e-mail accounts. I do not want Outlook to
automatically select the right account but to select one account I define in
this form. And I also want that the user must not change this account
manually.

Is that possible? What do I have to do for that? Is there a work-arround if
the answer is no?

thx

Mõbius