Berkeley, Calif.—Lyris Technologies, an e-mail subsidiary of J.L. Halsey, announced it has partnered with Mailshell, an anti-spam software company, to provide enhanced delivery of transactional and opt-in e-mail messages. Lyris said the collaboration enables Lyris' customer data to be run through Mailshell's sender reputation database, bolstering e-mail reputation and delivery rates for permission-based e-mail. The Mailshell sender reputation database uses an advanced statistical model to assign a reputation score to e-mail messages. That data quantifies the reputation of organizations' e-mail message attributes and sending habits.