I got the same email too.
I've put together a mailing and fax list of my legislators so I can write one letter, print it off, fax, and email them in about 15 minutes. Every time I write a letter they get it at least 3 ways. For local and state issues I include the immediate surrounding legislators. Mine is anti-gun but the others around us are pro 2nd A. I figure it doesn't hurt. The more action they get the better.