Emailing has become the new talking, new faxing and new way to confirm everything.
So emailing with a signature like pictured above, is very bad practice in this day and age.
The above email signature is a very very poor example and something you would expected to have seen 10 years ago.
Ask your IT or someone in your business who is computer savvy to set up a signature with;
An image with a call to action
A Facebook button
A Twitter button
Links to Twitter or Facebook
links to your website
And anything else you can add that will draw people back into your reach as a sale or enquiry.
Avoid using black backgrounds or to larger image files in order to enable your emails to be seen. And to prevent your emails dropping into spam and clogging up peoples email inboxes.