"Due to the higher frequency we are seeing in word and excel macro based trojans, malware and viruses coming into our inboxes ..."

I'd also add, that allowing macros to be run on demand is not much of an effective defence - unless you have some effective screening of the macro code first.  And, if you did, why block the macros?

Thomas, good points; however, rest assured I was not suggesting to base their security on common sense or technical awareness alone.

Thanks so much everyone!

@Dreamboat  - You are very welcome and I was happy to help