AT&T Tuesday unveiled a new set of managed encryption services designed to help companies prevent data loss and stay in compliance with electronic storage regulations.

The service package, dubbed AT&T Encryption Services, includes encryption for e-mail and attachments for Outlook, Outlook Express, Lotus Notes, BlackBerry and Webmail; an e-mail gateway that enforces enterprise encryption policies and uses standards such as PKI, X.509 and S/MIME; an encrypted e-mail exchange that lets businesses create different groups to help secure messages sent among members in individual departments; tools to encrypt entire folders or network drives; and a document delivery application that uses a trusted e-mail standard to securely send sensitive documents.

AT&T says it will centrally deploy and manage the services, and it will integrate with antivirus, antispam and archiving services. Pricing plans for the encryption services were not immediately available.

Businesses have been increasingly encrypting more of their data in order to meet the data protection standards mandated by banking, healthcare and retail regulations such as the the Health Insurance Portability and Accountability Act, the Payment Card Industry data security standard and the Sarbanes-Oxley Act.

AT&T's managed encryption service is just the latest addition to its managed security services lineup. Last year, for instance, AT&T launched a managed firewall service and a managed service aimed at heightening protection for IP VPNs. Earlier this year, the company debuted its Business in a Box service  that acts as a converged voice and data service for small businesses, and which provides either hosted or premises-based options.