Adding an e-mail signature is a great way to not only add your contact info so clients and prospects can easily contact you, but it also adds a bit of personality to your emails and a sense of warmth and customer service.
E-mail signatures should be about 5 lines of text. This is because you don’t want your signature to take up more space than the message. If it does, the reader can’t be clear on what they need to pay attention to.
An effective e-mail signature should include your name, company name, company tagline, phone number and website address.