In Search Of E-Mail Datasets Like ENRON

Hi everyone, I am PhD student and currently working on an NLP and Network Analysis project. I am in search of an email dataset with sender, receiver and the message information. Preferably from companies with some other metrics such as performance and so on included (which is not absolute necessity). If anyone know of such a dataset like ENRON or SpamAssasian and direct me to it, I would be most thankful.