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| Sun Java System Messaging Server 6 2004Q2 Deployment Planning Guide | |
Chapter 1
Introduction to Messaging Server SoftwareSun Java™ System Messaging Server 6 2004Q2 is a powerful, standards-based Internet messaging server designed for high-capacity, reliable handling of the messaging needs of both enterprises and service providers. The server consists of several modular, independently configurable components that provide support for several standards-based email protocols.
Messaging Server uses a centralized LDAP database for storing information about users, groups, and domains. Some information about server configuration is stored in the LDAP database. Some information is stored in a set of local configuration files.
The Messaging Server product suite provides tools to support user provisioning and server configuration.
This chapter contains the following sections:
Support for Standard ProtocolsMessaging Server supports most national, international, and industry standards related to electronic messaging. For a complete list, see Appendix A of the Sun Java System Messaging Server Administration Reference:
Support for Hosted DomainsMessaging Server provides full support for hosted domains—email domains that are outsourced by an ISP. That is, the ISP provides email domain hosting for an organization by operating and maintaining the email services for that organization remotely. A hosted domain can share the same Messaging Server host with other hosted domains. In earlier LDAP-based email systems, a domain was supported by one or more email server hosts. With Messaging Server, many domains can be hosted on a single server. For each hosted domain, there is an LDAP entry that points to the user and group container for the domain and provides various domain-specific default settings.
Support for User ProvisioningMessaging Server uses a centralized LDAP database for storing information about users, groups, and domains. At this time, Messaging Server supports two schema options, Sun Java™ System Schema 1 (Schema 1) and Sun Java™ System Schema 2 (Schema 2). The provisioning options will depend on which schema you have chosen. See Chapter 11, "Pre-Installation Considerations and Procedures" for more information.
At this time, Messaging Server provisioning for Schema 2 can only be done using the commadmin utility, as documented in the Sun Java System Communications Services User Management Utility Administration Guide:
Schema 1 is supported by the iPlanet™ Delegated Administrator for Messaging product, which provides a graphical user interface and a set of command-line utilities for managing the users, groups, and domains within an organization. You can also use the following documentation, pertaining to previous software releases, for managing users, groups, and domains in Schema 1:
- iPlanet Delegated Administrator online help
Support for Unified MessagingMessaging Server provides the basis for a complete unified messaging solution: the concept of using a single message store for email, voicemail, fax, and other forms of communication.
Support for WebmailMessaging Server includes Messenger Express, a web-enabled electronic mail program that lets end users access their mailboxes using a browser running on an Internet-connected computer system using HTTP. Messenger Express clients send mail to a specialized web server that is part of Messaging Server. The HTTP service then sends the message to the local MTA or to a remote MTA for routing or delivery.
Note
Sun Java™ System Communications Express also supports the Messenger Express client. See the Communications Express documentation for more information:
Powerful Security and Access ControlMessaging Server provides the following security and access control features:
- Support for password login and certificate-based login to POP, IMAP, HTTP, or SMTP
- Support for standard security protocols: Transport Layer Security (TLS), Secure Sockets Layer (SSL) and Simple Authentication and Security Layer (SASL)
- Delegated administration through access-control instructions (Schema 1 only)
- Client access filters to POP, IMAP, SMTP, and HTTP
- Filtering of unsolicited bulk email using system-wide, per-user, and server-side rules
Convenient User InterfacesMessaging Server consists of several modular, independently configurable components that provide support for email transport and access protocols.
To configure the Message Transfer Agent (MTA), Messaging Server provides a complete set of command-line utilities and configuration files stored locally on the server. To configure the Message Store and message access services, Messaging Server provides a console graphical user interface and a complete set of command-line utilities.