I email them from my work email address, which also has my title, phone number and employer name. I tell them a little about myself (see some of my earlier emails I pasted to yahoo). I also write the email as if it is a letter, not as a conversational email.
Maybe instead, try asking how you would go about finding more information on the topic you are requesting. Good luck.
I would email them from my work email except that looks bad since the regulators read our emails each year, haha. Honestly I'm a little peeved they don't respond when on the conference call Gurnee casually said to email him for more information.