Introduction to Microsoft Exchange Server SE
Microsoft Exchange Server Subscription Edition (SE), originally branded Exchange Server 2019, is an on-premises version of Exchange that supports hybrid deployments that include Microsoft 365 Exchange Online. A major enhancement is support for Microsoft Windows Server 2019 Core, which reduces the surface area vulnerable to a malware assault and dispenses with unneeded server roles that waste network resources. Refinements over Exchange Server 2016 include enhanced data protection, greater performance and capacity, and a multitude of new email client benefits.
The Mailbox and Edge Transport services as well as admin utilities for Exchange SE require Microsoft Windows Server 2019 Standard or Datacenter. Microsoft Exchange Server 2019 no longer includes the Unified Messaging (UM) role, and therefore does not provide voicemail or auto attendant services. If your organization are upgrading from Exchange Server 2013 or Exchange Server 2016 and have implemented Unified Messaging (UM) services, Microsoft recommends that you move to the Microsoft Cloud Voicemail Service available in Microsoft 365. Skype for Business 2019 and Microsoft Teams use this voice messaging service for Exchange SE mailboxes. Generally, migration to Exchange Server SE can require a serious modernization effort.
Progent's Microsoft experts can assist your organization with any facet of your move to Exchange SE from Exchange Server 2016, Exchange Server 2013, or from other legacy releases of Microsoft Exchange Server. Progent can provide online and onsite guidance for solution planning; configuring hybrid architectures; building test lab environments; incorporating fault-tolerant techniques including hardware load balancing (HLB) and DAG groups; confirming server and CAL licensing compliance; configuring host systems based on Windows Server 2019; planning and deploying Hyper-V virtual machines; upgrading your voicemail system; and calculating disk storage requirements for virtual machines, databases and logs. Progent's Exchange SE experts are available to provide on-demand assistance to assist your business resolve an urgent technical bottleneck or Progent can deliver comprehensive project management or co-management expertise to make sure your Exchange SE migration is carried out on schedule and on budget.
Exchange SE Architecture
Exchange SE is engineered on the streamlined architecture used for Exchange Server 2016. This design combines transport services, mailbox databases, and client access services in the Mailbox server. This significantly simplifies migration, configuration, scale, administration, and debugging compared to legacy releases of Exchange Server. The optional Edge Transport Server role includes filtering agents that allow your perimeter network to manage Internet-facing email flow and guard against data leakage, spam and viruses.

Exchange SE Mailbox and Edge Transport servers and management utilities need Standard or Datacenter version of Microsoft Windows Server 2019. To manage these servers from a Windows client requires an up-to-date 64-bit version of Windows. (Exchange 2016 can be run on Windows Server 2012 R2 and managed with Windows 8.1 or later.) Progent can provide remote or onsite Windows Server 2019 planning and integration consulting, Windows 11 planning and upgrade support, and Windows 10 deployment consulting to assist your business to modernize your Exchange environment.
Cybersecurity and Performance Improvements in Microsoft Exchange Server SE
Microsoft Exchange SE is optimized for running on Windows Server Core, which provides the safest deployment for Exchange Server SE. You can also run Exchange SE on Windows Server 2019 with Desktop Experience, although this option presents a bigger target for malicious attacks. Out of the box, Exchange Server SE uses TLS 1.2 transport protocol and replaces legacy ciphers and hashing algorithms. Several standards organizations call for the adoption of TLS 1.2. Another security improvement is the ability in Microsoft Exchange Server SE to prevent outside users from accessing the Exchange admin center (EAC) and the Exchange Management Shell. This means you can make sure that the management of Microsoft Exchange Server SE may occur exclusively from within the security perimeter of your system.
For improved performance and scale, Microsoft Exchange Server SE can utilize up to 48 processor cores (as opposed to 24 for Exchange Server 2016) and 256GB of RAM memory (vs. 192GB for Exchange 2016). Recommended minimum in-box RAM has been increased to 128GB. The well-tested search technology incorporated in Microsoft Exchange Online has been brought to Microsoft Exchange Server SE to deliver enhanced search response and quicker database failovers, support bigger files for indexing, and streamline administration. Exchange Server SE also works with larger disk drives. To counter the longer latency associated with high-density spinning disk drives, the innovative MetaCacheDatabase technology of Microsoft Exchange SE enables you to configure solid state disk (SSD) caching when you deploy Database Availability Groups (DAGs). Powered by technology originally developed for Exchange Online, MCDB can significantly enhance the responsiveness of the user environment. Performance is further increased by changes in Microsoft Exchange Server SE algorithms that allocate more RAM for caching live database copies. These improvements in Exchange Server SE make it possible to configure each server to support more users, deploy bigger disk drives, and increase the responsiveness of common end-user processes.
Changes for Exchange SE Clients
Microsoft Exchange SE can be used with Outlook 2013, 2016 and 2019. Improvements to the client experience include the Do-Not-Forward feature that allows only a meeting's organizer to create invitations other guests. Out-of-Office options have also been expanded. In addition, a Remove-CalendarEvents cmdlet allows administrators to delete events organized by a worker who has left the business.
Microsoft Cloud Voicemail for Exchange SE
Microsoft Exchange SE does not include the UM services offered in prior versions of Exchange. Unified Messaging services include voicemail and auto attendant. Microsoft Skype for Business 2019 relies on Cloud Voicemail Service to provide voice messaging functions for Microsoft Exchange SE mailboxes. (Skype for Business 2019 still supports Exchange UM services for Microsoft Exchange 2013 and Exchange Server 2016.) Microsoft suggests that customers moving to Exchange Server SE adopt Skype for Business Server 2019 and subscribe to Cloud Voicemail Service. Exchange Server SE and Skype for Business 2019 can be configured in a hybrid environment with a combination of Microsoft Exchange SE and Exchange Online mailboxes so that both local SE users and Exchange Online cloud users have full access to advanced voice messaging services.

This voice messaging solution offers voicemail answering and deposit; voice-to-text and text-to-voice transcription; voice mail access through either Outlook or Skype for Business; voicemail administration via the Microsoft 365 portal; and hybrid support for Microsoft Exchange mailboxes on premises or cloud resident. Management is simplified because of a single set of management utilities for both Microsoft Exchange SE and Microsoft Exchange Online mailboxes. Progent's consultants can help your business to follow best practices to plan and implement a hybrid topology that allows all your Exchange clients to access the Cloud Voicemail service.
How Progent Can Assist You to Deploy and Maintain Microsoft Exchange Server SE
Exchange 2003 is at end of life. Microsoft Exchange 2007 and Exchange 2010 are all legacy platforms. Exchange Server SE, Microsoft Windows Server 2019, Microsoft Skype for Business 2019, and SharePoint Server 2019 have all been revamped with Microsoft's proven cloud environment and tuned for hybrid deployments. Under these circumstances, it makes sense to think about updating your messaging and groupware infrastructure. Progent's Microsoft-certified experts can assist you to evaluate the strategic benefits and technical hurdles associated with moving to Microsoft Exchange and other modern solutions; determine whether an on-premises, cloud, or hybrid architecture works best for your organization; plan and record a migration strategy that makes efficient use of your current resources; and carry out an upgrade from your existing Microsoft Exchange environment to a modern messaging solution based on Microsoft Exchange Server SE.
Progent's Microsoft-certified consultants can assist organizations of all sizes to follow leading practices for planning and carrying out a cost-effective migration to Exchange SE from Exchange 2016, Exchange 2013, Exchange 2010, Exchange 2007, or Exchange 2003. Progent offers a wide array of remote and on-premises services including process design review; architecture documentation; configuring Microsoft Windows Server Core to run Microsoft Exchange Server SE; integrating Skype for Business 2019 and Microsoft Cloud Voicemail Service; developing the schema, domain, and forest for Microsoft Exchange SE; defining and implementing Database Availability Groups (DAGs) and hardware load balancing (HLB) for high availability (HA) and fast recovery; implementing DirSync; tuning firewalls, creating SSL certs and resolving SSL problems; configuring Internet Information Services; creating PowerShell scripts; and checking email flow.

Progent's certified Microsoft Windows Server experts, Microsoft Skype for Business specialists, SharePoint 2019 solution design consultants and Microsoft 365 integration consultants can help your business to create advanced, integrated collaboration solutions based on Microsoft Exchange SE. To enable mobile devices with Microsoft Exchange Server SE, Progent can provide Apple iOS expertise and Android smartphone and tablet consulting. Progent's high availability load balancing experts are experienced in designing and debugging cost-effective technology from top providers like Barracuda, Cisco, NetScaler, Fortinet, and Kemp Technologies.
Progent's disaster recovery/business continuity planning experts can assist you to create, implement and validate a disaster recovery and business continuity (DR/BC) plan for Exchange SE based on multiple geo-dispersed IT facilities or a mix of physical and cloud-based resources. Progent's CISM and CRISC certified cybersecurity experts can design and configure company-wide mail policies that comply with corporate requirements and government mandates. Progent's Cisco CCIE-certified network consultants can assist your business to design, configure and troubleshoot an efficient, secure, and resilient network architecture for your Exchange SE solution. Progent has more than two decades of background supporting Microsoft's Exchange platform and can guide you how to follow leading practices as you move through the critical phases of Exchange migration including coexistence, pilot testing, mailbox migration, legacy technology retirement, debugging, education, and tuning.
Microsoft 365 Integration with On-prem Exchange
Microsoft supports seamless hybrid networks that combine Microsoft 365 and local Exchange. This permits you to have specific mailboxes located 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 troubleshooting your hybrid Exchange network. Progent's Exchange consultants can provide as-needed support to help you through challenging technical problems and also can provide comprehensive project management outsourcing or co-sourcing to ensure your hybrid Exchange initiative is successfully completed on schedule and on budget. For more information about Progent's consulting expertise for hybrid Microsoft 365 and on-premises Exchange environments, refer to Microsoft 365 integration solutions with local Exchange.
Download Progent's Microsoft Exchange Server SE Migration Support Datasheet
To read or download a datasheet on Progent's migration consulting services for Microsoft Exchange SE, click:
Progent's Exchange Server SE Migration Support Datasheet. (PDF - 101 KB)
If you wish to get in touch with Progent about technical assistance for Exchange Server integration, call