Electronic signatures are a great way for the university to have a consistent brand image. While there are no official guidelines for signatures, it is suggested that you do not use an attached image as a signature, since email systems and users may inadvertently read those messages as spam.
In addition, it is recommended that you use the full name: Carnegie Mellon University, rather than "CMU" or other acronyms, as well as provide a link back to www.cmu.edu.
Finally, it’s much easier to read Verdana and Arial fonts on the web. We suggest these san serif options.