https://thenextweb.com/contributors/2018/05/29/how-to-make-a-free-email-signature/

The signature of your emails may be a part of the message you don’t think about very much. After all, there are so many tips about composing the body of an email that the signature might seem like a mere afterthought.

However, it’s essential for boosting your credibility — whether you have a traditional job or work as a freelancer.