Email stationary is used in conjunction with your email program.
It is like having your letterhead design on your emails.
Design Change creates a customised masthead and footer that uses your logo and corporate branding. This is then coded into your email program, allowing every email sent to reflect your company.
Links to your website can be incorporated and each member of staff can have their own personalised masthead, or a generic one could be used for all staff members.
With the amount of communication that occurs via email these days - it makes sense for your emails to reflect your company - doesn't it?