SENTO PROVIDES UPDATE ON SIGNIFICANT CUSTOMER

SALT LAKE CITY, Utah, June 7, 2007 –Sento Corporation (Nasdaq: SNTO), a right-channeling solutions leader, today reported it received notice on June 4, 2007 from Amp’d Mobile, Inc., a significant new customer, that Amp’d Mobile filed a voluntary petition for relief under Chapter 11 of the United States Bankruptcy Code on June 1, 2007. As of the date of the filing, Sento was owed approximately $1.8 million by Amp’d Mobile, mainly for services rendered, and will create a reserve for the required amount. Sento has retained counsel to protect its interests with the Bankruptcy Court in this matter. The Company is continuing to evaluate the effect on the Company of Amp’d Mobile’s bankruptcy.

SENTO PROFILE

Sento Corporation (www.sento.com) specializes in Right Channeling(SM), a proven methodology designed to optimize customer contact solutions and ensure that companies make informed choices for multi-channel communication that support their business goals and customer expectations. We offer outsourced customer contact services designed to optimize the way companies interact with their customers to enhance brand loyalty, improve customer satisfaction, drive business initiatives and reduce service costs. Through our proprietary Customer Choice Platform(SM), we offer comprehensive professional services and customer interaction tools for customer acquisition, customer service and technical support. Companies can select communication channels from a range of integrated live support and web-enabled self-help applications that combine voice, chat, email and web forums. With operations in the U.S., The Netherlands, and France, plus partnerships in India and other low-cost regions, Sento provides customer contact solutions in 19 languages to industry-leading clients worldwide including McAfee, LensCrafters, Philips, Thomson, and Overstock.com.

FORWARD-LOOKING STATEMENTS

Statements in this press release, which are not purely historical, are forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Such statements encompass Sento's beliefs, expectations, goals, hopes or intentions regarding future events. Words such as “expects,” “intends,” “estimates,” “believes,” “anticipates,” “should” and “likely” also identify forward-looking statements. All forward-looking statements included in this release are made as of the date hereof and are based on information available to Sento as of such date. Sento assumes no obligation, and specifically disclaims any obligation, to update any forward-looking statement. Actual results could differ materially from those anticipated for a number of reasons, including, among others: the Company’s stock price has historically been volatile; variations in market and economic conditions; the Company’s dependence on its limited number of key clients; failure to renew existing client contracts for continuation of services; reduction in services requested by the Company’s clients resulting in lower revenues for the Company; the Company’s ability to complete negotiations and execute client agreements; risk of equipment failure and/or emergency interruption of the Customer Contact Solutions operations; and other unanticipated factors. Risk factors, cautionary statements and other conditions, which could cause actual results to differ from the Company's current expectations, are contained in the Company's filings with the Securities and Exchange Commission, including the Company's Annual Report on Form 10-K.

Contact:

Kim A. Cooper, CEO, Sento at 801-431-9200

SENTO CORP 8-K