Alternative to SendEMail - Calling local email client

So - I have been using SendEmail for several years now and by and large it does a good job and I have some great styled forms that are sent out as wwell as using it for  auto mailing clients etc and sending out mailers to all customers.

However I have a need to also use the straight forward email field's ability to call my local email client (outlook) and after some testing - I can't call it and get a styled email (even if I preset a style in outlook)

If I use the options on the email filed ie Subject detail. Then so far it ignores any html type style.

My need is that I want to use this method when I call outlook and then add several files/iamages to the message before sending (these files always vary) ie they are proofs etc and due to their size I can not hold these within Ninox.

initial sample attempts give me this below that is passed to outlook. The logo only kick in because it is set in the outlook default signature.

Basically. I want to be able to pass on the style and also use data variable tags in the body message (as one does with SendEmail)

Has anyone achieved this? or is this method really too basic