Overview of Microsoft Exchange 2003 Server
Exchange 2003 Server provides a reliable, scalable, and manageable infrastructure with round-the-clock email and team support plus low cost of ownership. Microsoft Exchange Server 2003 enables a wide range of team functions, including group calendaring abilities, discussion areas, and team folders, and also makes available information that crosses geographic, logical, and technology barriers with productivity enhancers that include IM, real-time information, and video conferencing. Microsoft Exchange Server 2003 incorporated enhancements over Microsoft Exchange 2K Server in important technologies that address protection, performance, and mobility.

In 2009 Microsoft ended support for Exchange Server 2003, requiring IT management deal with all the problems associated with supporting a legacy email system. Despite this, a large number of Exchange users are still running Exchange 2003. Progent's Microsoft-authorized IT engineers offer extensive experience supporting Microsoft Exchange 2003 and can help your business to manage and repair your current Exchange Server 2003 solution or assist you to design and execute an economical migration to a current edition of Microsoft Exchange. (Refer to Progent's Exchange 2016 upgrade support services and Exchange Server 2013 expertise.)

Improvements of Exchange 2003 Over Exchange 2K Server
Microsoft Exchange Server 2003 offers enhancements in functionality over Microsoft Exchange 2K Server in important areas such as recovery, performance, protection, mobile access, teamwork, and manageability.

  • Microsoft Exchange 2003 Server offers improved recovery by adding support for eight-node clustering, faster cluster failover, the addition of mount points which eliminate the 24-drive designation limitation, storage area network compatibility, Volume Shadow Copy Service for backup infrastructure, a Mailbox Recovery Center tool, and a Restore Storage group.
  • MS Exchange Server 2003 enhances performance via innovations that include /3GB and /USERVA startup switches for tuning the allocation of use of memory, public folder replication improvements, distribution list caching enhancements, and suppression of Out of Office messages.
  • Security improvements introduced by Microsoft Exchange Server 2003 include IPsec support for front-end and back-end clusters, signed LDAP requests to Microsoft Active Directory, front-end and back-end Kerberos validation, IIS 6.0 protection, limiting of distribution lists to authenticated users, real-time Safe and Block data, inbound recipient filtering, attachment blocking in OWA, and public folders access enhancements.
  • Exchange Server 2003 includes improved support for remote and mobile users by adding an Outlook Web Access (OWA) user interface (UI) and a more extensive range of capabilities for Web Outlook, Microsoft Outlook speed enhancements via MAPI compression, HTTP compatibility from Microsoft Outlook, cHTML aND.htmL mobile phone browser support, and synchronization of notifications for Pocket PCs.
  • Manageability and serviceability are improved by centralizing queues on a per-server system, enhancing the user interface, exposing all system queues, enabling cookie authorization, using Microsoft Exchange System Manager to move queue data, including a multiple-client Move Mailbox function, and providing dynamic distribution lists, public folder Send hierarchy, and public folder affinity to manage referrals.

Improvements of Microsoft Exchange 2003 Compared to Exchange 5.5 Server
Exchange Server 2003 offered major enhancements in capability over Exchange 5.5 in key areas including accessibility, manageability, protection, stability, capacity, and speed.

  • Exchange 2003 Server brings a dramatic improvement in functionality compared to the Microsoft Exchange 5.5 web client. MS Exchange Server 2003 offers a nearly identical implementation of the traditional Microsoft Outlook GUI interface that features calendaring and utilities. As a result, remote and mobile workers can have complete, secure access to email even if they don't have a laptop. All mobile users need is an Internet-attached computer with a standard browser.
  • In contrast to MS Exchange 5.5 Server, which incorporates its own directory, Exchange 2003 Server takes advantage of Microsoft Active Directory, providing a greatly simplified administration and protection model. This makes Microsoft Exchange Server 2003 less expensive to manage and maintain and also allows better security.
  • Microsoft Exchange 2003 Server has a strong foundation for seamlessly integrating non-Microsoft applications including virus and spam scanning software. Exchange 2003 Server's strong Application Programming Interface eliminates the technical risk associated with Exchange 5.5 Server when adding independent software.
  • Microsoft Exchange Server 2003 offers significantly improved scalability and speed in comparison to MS Exchange Server 5.5. Enhancements include more and larger mailboxes and speedier remote access.
  • Exchange 2003 Server also has improved searching capability, making it easier and quicker to find important information when you have to have it.

Advantages MS Exchange 2003 Server Compared to an ISP-provided or POP3 Email Environment
If your organization is currently using an email system hosted by an ISP or if you are operating your Outlook users in POP3 mode, Exchange 2003 Server offers a wealth of improved features in the areas of manageability, performance, capacity, availability, and group support:

  • In contrast to the store-and-forward technique utilized by POP3 email systems, MS Exchange Server 2003 is based on a central-store model that liberates users from reliance on a specific desktop computer or laptop, lowers susceptibility to hardware failure or virus attacks, and allows both on-line and off-line email, automatic backup, and sophisticated collaboration.
  • Microsoft Exchange Server 2003 has an array of groupware capabilities that allow work groups to improve efficiency by sharing calendaring, address groups, correspondence, and data.
  • The flexibility of Microsoft Exchange Server 2003 makes it possible to integrate non-Microsoft security enhancements or accommodate wireless computers such as the BlackBerry smartphone.
  • MS Exchange Server 2003 works with advanced administration and tracking utilities to verify that your email environment is running smoothly.
  • Exchange Server 2003 permits full on-line backup without hurting performance, supporting 24x7 availability by eliminating routine downtime.

How Progent Can Assist You to Move Your POP3 Clients to Microsoft Exchange Server 2003
Progent's experience and tested methodologies can help you to implement a fast, seamless migration of your POP3 e-mail users to Microsoft Exchange 2003 Server. Progent pays attention to critical issues that include managing domain names so that both local and mobile workers enjoy a smooth transition from the limitations of POP3 email. Progent can help you with integrating an on-site Exchange Server 2003 solution or assist you to locate and administer your Exchange Server 2003 in an off-site datacenter. Progent's disaster recovery consultants can help you to develop and execute a comprehensive disaster recovery strategy that includes Microsoft Data Protection Manager consulting for ongoing online backup and rapid system recovery.

How Progent Can Help You to Migrate to Exchange 2013 or Exchange 2016 from Exchange Server 2003
Progent's Microsoft Exchange experts can assist your company to upgrade to Exchange 2013 Server or upgrade to MS Exchange 2016 Server from MS Exchange Server 2003 at the least possible cost or interruption of business operations. Progent can help you to enhance Microsoft Exchange security, speed, dependability, and fault tolerance and streamline administration. Progent's certified system security specialists can evaluate and upgrade your security environment and Progent's Cisco-certified network engineers can upgrade your network infrastructure to improve network efficiency and reduce support cost.

Office 365 Integration with On-premises Exchange
Microsoft 365 Integration Solutions with On-premises ExchangeMicrosoft supports seamless hybrid networks that combine Office 365 Exchange Online and local Exchange. This permits you to have specific mailboxes hosted at your corporate datacenter and other mailboxes hosted by Microsoft 365. Progent's Microsoft-certified Exchange consulting team can help you with any phase of planning, integrating and debugging your hybrid Office 365 network. Progent's Exchange consultants can provide occasional expertise to help you through challenging technical bottlenecks and also can provide comprehensive project management outsourcing to make sure your hybrid Office 365 initiative is completed on time and on budget. To find out more about Progent's online consulting support for hybrid Microsoft 365 and on-premises Exchange environments, refer to Office 365 integration with on-premises Exchange.

Find out more about Progent's IT Outsourcing services.

To ask Progent about consulting help for MS Exchange Server, phone 1-800-993-9400 or visit Contact Progent.



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