Exchange Server email hosting

Exchange Server, the Microsoft messaging and collaboration server, is software that runs on servers that enables you to send and receive electronic mail and other forms of interactive communication through computer networks. Designed to interoperate with a software client application such as Microsoft Outlook, Exchange Server also interoperates with Outlook Express and other e-mail client applications.

 

Meet the requirements for small and large organizations and get easy administration, support, and reliability with Exchange Server. Readily available deployment and support tools also make Exchange Server easy to manage.

 

E-mail messages are sent and received through what is commonly referred to as a client device such as a personal computer, workstation, or a mobile device including mobile phones or Pocket PCs. The client typically connects to a network of centralized computer systems comprised of servers or mainframe computers where the e-mail mailboxes are stored. The centralized e-mail servers connect to the Internet and private networks where e-mail messages are sent to and received from other e-mail users.

Exchange server features

Exchange Server 2003 is the Microsoft messaging and collaboration server designed to help you communicate more effectively. Along with the rich client functionality provided by Microsoft Office Outlook 2003, Exchange Server 2003 offers:

 

• Mobile, remote, and desktop e-mail access with state-of-the-art security and privacy
• Lower cost of ownership through the services provided by Microsoft Windows Server 2003
• High reliability and outstanding performance
• E-mail-based collaboration
• Easy upgrading, deployment, and administration

Security and Privacy

To uphold the tenets of the Microsoft Trustworthy Computing initiative, Exchange Server 2003, along with Windows Server 2003, is committed to be secure by design, secure by default, and secure in deployment. Exchange Server 2003 protects your messaging environment as well as your privacy with:

 

• Distribution lists restricted to authenticated users. You can allow sending only from authenticated users or specify which users can or cannot send mail to specified distribution lists.
• Support of real-time Safe and Block lists. Reduce the amount of unsolicited junk e-mail messages delivered to your organization with connection filtering.
• Inbound recipient filtering. Reduce unsolicited junk e-mail messages by filtering inbound messages based on the recipient. Messages that are addressed to users who are not found, or to whom the sender does not have the permissions to send, are rejected. This applies only to messages sent by anonymously authenticated users.
• Kerberos authentication between a front-end and back-end server. To help ensure that credentials are secure, Exchange Server 2003 uses Kerberos delegation when sending user credentials between a front-end server, running services such as Microsoft Office Outlook Web Access or Microsoft Outlook Mobile Access, and a back-end server such as the mailbox store.
• Privacy protection in Outlook and Outlook Web Access. By default, content from outside your network is blocked in Outlook 2003 and Outlook Web Access. This feature helps prevent spammers from identifying valid e-mail addresses through links to external content. You can, however, override this feature to view external content.
• Antispam integration with Outlook 2003 and Outlook Web Access. You can upload the Safe and Block Senders List to Exchange Server 2003 for filtering.
• Microsoft Exchange Intelligent Message Filter. Integrated in Exchange Server 2003 for server-side filtering of unsolicited junk e-mail messages and also in Outlook 2003 for client-side filtering, Exchange Intelligent Message Filter uses Microsoft SmartScreen technology to help reduce cost and boost productivity by unsolicited junk e-mail messages.
• Virus Scanning API 2.5. Non-Microsoft antivirus products can run on servers running Exchange Server 2003 that do not have resident Exchange Server mailboxes and are allowed to delete and send messages to the sender.
• Clustering security. Exchange Server 2003 clustering supports Kerberos authentication against an Exchange Server virtual server. Exchange Server 2003 also supports Internet Protocol security (IPSec) between front-end servers and clustered back-end servers running Exchange Server.
• Administrative permissions. Cross-forest support and the ability to administer both Exchange 2000 Server and Exchange Server 2003 helps organizations that have segmented the administration of their Microsoft Windows–based environment and Exchange Server environment into two unique groups and are concerned about security.
• Restricted relaying. You can restrict relaying to a limited number of security principles through the standard Windows 2000 discretionary access control list (DACL). The ability to grant relaying to an IP address is still present.
• Restricted submissions. You can restrict submissions to a limited number of security principles through the standard Windows 2000 DACL. This feature helps prevent blocked senders from sending to internal-only distribution lists by spoofing, which is the practice of tricking users into providing passwords and other information to allow unauthorized access into a system.
• Public folder permissions for unknown users. Folders with distinguished names in access control lists that cannot be resolved to security identifiers drop the unresolvable distinguished names.
• Public folder store replication. Public folder servers replicate with local servers for updates even if the local servers do not have the full set of replication content that they need. You can use a registry key to identify the first server that is used for backfilling.
• Microsoft Baseline Security Analyzer (MBSA). Download an easy, streamlined method of identifying common security misconfigurations for Microsoft products including Exchange Server and Windows Server 2003.
• IPSec encryption. Traffic between front-end and back-end servers, including back-end cluster servers, is more secure.

Reliability

Exchange Server 2003 is deeply integrated with Windows Server 2003 for enhanced reliability of the IT environment. These capabilities include:

 

• Support for up to eight-node clusters. Get up to eight-node clustering with a minimum of one passive node on Windows Server 2003, Enterprise Edition.
• MailboxRecoveryCenter. Get bulk reconnection of mailboxes to the appropriate user in Active Directory directory service to support disaster recovery scenarios. You can scan the mailbox database and determine all disconnected mailboxes, automatically match user mailboxes to user accounts in Active Directory, recover individual or multiple mailboxes, and identify conflicts.
• Automatic error reporting. Easily report errors to Microsoft to help improve future product functionality.
• Cluster failover time. The dependency hierarchy of Exchange Server services has been flattened so that the Exchange Server protocol services are no longer dependent on the Microsoft Exchange Server Information Store service. You can bring the Exchange Server store online and offline in parallel with the protocols.
• Virtual memory usage and monitoring. The virtual memory usage in Windows Server 2003 in conjunction with the Exchange Server Information Store service reduces fragmentation and enables higher-end servers with a large number of users to achieve greater availability.
• Integration with Dr. Watson 2.0. Get error reporting for the Exchange Server System Manager, System Attendant, Directory Services Management, Exchange Server Management Service, Exchange Server Setup, and Exchange Server Information Store service.

Productive

Save time and increase productivity with:

 

• Volume Shadow Copy service. Exchange Server 2003 supports the Volume Shadow Copy service implemented in Windows Server 2003. The copy service functionality gives you a nearly instantaneous backup and restore because a mirrored copy of the database exists at any time and can be used for restore processes.
• Dynamic distribution lists. Reduce the time you spend managing distribution lists with the new query-based distribution group. These groups achieve the same functionality as standard distribution lists, but instead of specifying static user memberships, they allow the use of a Lightweight Directory Access Protocol (LDAP) query to specify the members of the distribution lists (for example, "All full timers in my company").
• Exchange Server System Manager. In earlier versions of Exchange Server, you had to move log files yourself with directory modification tools and with the information gained from studying Microsoft Knowledge Base articles. In Exchange Server 2003, message tracking log files, as well as X.400 message transfer agent (MTA) queue data and Simple Mail Transfer Protocol (SMTP) queue data, are moved by using Exchange Server System Manager. Other Exchange Server System Manager improvements include:
  • A user interface (UI) that offers simplified search filter, improved sorting by columns, and the ability to select multiple queues and messages for manipulation.
  • Improved setup for remote procedure call/Hypertext Transfer Protocol (RPC/HTTP) access for Outlook 2003 clients.
  • Queues that are centralized on a per-server basis as opposed to a per-virtual server basis so that all queues on a server can be viewed in one location.
  • Increased performance in queue enumeration, and all queues are initially displayed in Exchange Server System Manager. Control of Exchange Server System Manager is returned to you before all queues are displayed.
  • All system queues are exposed to help you troubleshoot. Exchange Server System Manager includes the Enable Forms Based Authentication feature on the virtual servers so authentication cookies can be enabled or disabled easily through the UI.
  • More exposed cluster action. In a cluster, status can be viewed for virtual servers and failover.
  • The addition of Windows Management Instrumentation (WMI) classes as well as many other new features.
• Auto Accept Agent. This tool enables Exchange Server to automatically handle initial meeting scheduling requests, cancellations, and updates and generates responses to the meeting organizer.
• Public folder management. Improvements in the UI for public folders include several new tabs:
  • Details, which shows the folder name and the date created.
  • Content, which shows the content that is using Outlook Web Access.
  • Find, for using the new search capabilities.
  • Status, which provides the folder's server name, the folder's public store name, folder size, the number of items in the folder, and the last time the folder was accessed.
  • Replication, which provides statistical data on replicas.
• Link state improvements.
  • If no alternate path exists, there is no change in the link state. If no alternative path for the link (or route) exists, Exchange Server considers the path available.
  • The routing of link state code is achieved by reviewing the link state queue. If there are multiple conflicting state changes for a connector, Exchange Server 2003 considers the connector available. It is better to leave an oscillating connector available than to continually change the link state.
• Public folder referral. You can specify a public folder referral through a new list in Exchange Server System Manager.
• Inter-organization Replication tool. Replicate free and busy information and public folder content between Exchange Server organizations (requires Exchange Server 2003 SP1).
• Move Mailbox tool. Ease mailbox movement from one server to another or to a different Exchange Server store by selecting multiple mailboxes. Make your mixed-mode, cross-site moves during site consolidation and migration easier.

Increased Mobility

Exchange Server 2003 has built-in mobile features to help drive greater worker productivity by facilitating mobile and remote computing scenarios. New and enhanced mobile and remote access features in Exchange Server 2003 include:

Outlook 2003

Mobile and remote workers can communicate and collaborate on the go, and coupled with the new user interface and security and support features, can communicate and collaborate more productively.

 

• Cached Exchange Mode. Outlook 2003 clients using Cached Exchange Mode perform most e-mail-related tasks from the local client computer, reducing the number of requests to the server for data. After the full copy of a user mailbox is downloaded, Cached Exchange Mode significantly reduces network bandwidth consumption between the client and server and removes the need to restart Outlook to an offline profile when network interruptions occur.
• HTTP access from Outlook. When used with the Windows Server 2003 RPC Proxy Service and Exchange Server 2003, Outlook 2003 clients can connect simply using HTTP or HTTPS, thereby reducing the need for Virtual Private Networks (VPNs) or dial-up remote access service (RAS). If your remote users only need to access corporate messaging information, you may not need to deploy VPN infrastructure.
• Performance enhancements. Enhancements like MAPI compression and buffer packing reduce the number of requests to and from the Exchange servers. Overall lower bandwidth consumption can lead to site consolidation and render savings for the IT department.