Yes, this is possible but first you need to realise that a formatted email is in HTML and in HTML there are no such objects as pages.
What this means is that your template cannot use Headers and Footers because they just don't exist in HTML.
Business letters normally have a unique first page with all the formal details at the top and bottom and subsequent pages are usually either blank or have a small footer. Replicating that for HTML emails isn't easy.
You have to create your template with three areas: the top area for addresses, date and logo (header info), the middle for entering the letter contents (body text) and the end area for signature block and company disclaimer, etc (footer).
However, that said, if your client uses an Exchange server, you can get an add-on to Exchange that will automatically add the header and footer to all outgoing emails with the content based on the user or department details referenced from the Active Directory profile.
Regards: Terry