New Fairfield officials are alerting residents to a scam mailing.  The state Attorney General's Office and Secretary of the State have received reports of businesses being mailed a letter suggesting that a $112.50 fee must be paid in order to obtain copies of their "Connecticut Certificate of Existence."  The company is calling itself CT Certificate Service.  The company has no affiliation with the state and officials say it's not a legitimate mailing.  Anyone receiving such a letter, or sent money to the company, should contact the state Attorney General's Office.