Dragan,
Did you try Redemption? It will remove all the security warnings from Outlook. We have some automated e-mail working 24/7 and we never experienced a problem with it.
[Edit]
Forgot the link...
http://www.dimastr.com/redemption/[/Edit]
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges