Your email signature should never be your selling point.
Too much text, taglines, and credentials can actually turn people away - which you never want to do if you're an entrepreneur or in sales.
Instead, provide clean and clear information about how to get in touch with you, along with a great headshot, and you're good to go.
Source: http://blog.happygrasshopper.com/the-best-email-signatures-are-simple/
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