17 Facts About Exchange Server

Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft.

Exchange Server primarily uses a proprietary protocol called MAPI to talk to email clients, but subsequently added support for POP3, IMAP, and EAS.

Exchange Server is licensed both as on-premises software and software as a service.

The directory used by Exchange Server eventually became Microsoft's Active Directory service, an LDAP-compliant directory service which was integrated into Windows 2000 as the foundation of Windows Server domains.

One of the key features of the new release is that Exchange Server can be deployed onto Windows Server Core for the first time.

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Additionally, Microsoft has retired the Unified Messaging feature of Exchange Server, meaning that Skype for Business on-premises customers will have to use alternative solutions for voicemail, such as Azure cloud voicemail.

Exchange Server 2003 introduced active-active clustering, but for two-node clusters only.

The clustering in Exchange Server provides redundancy for Exchange Server as an application, but not for Exchange data.

Exchange Server 2007 introduces new cluster terminology and configurations that address the shortcomings of the previous "shared data model".

Exchange Server 2007 provides built-in support for asynchronous replication modeled on SQL Server's "Log shipping" in CCR clusters, which are built on MSCS MNS clusters, which do not require shared storage.

Service providers looking to host Microsoft Exchange Server, there is a Service Provider License Agreement available whereby Microsoft receives a monthly service fee instead of traditional CALs.

E-mail hosted on an Exchange Server can be accessed using POP3, and IMAP4 protocols, using clients such as Windows Live Mail, Mozilla Thunderbird, and Lotus Notes.

Exchange Server 2003 featured a version of OWA for mobile devices, called Outlook Mobile Access.

Exchange hosting allows for Microsoft Exchange Server to be running in the Internet, referred to as the Cloud, and managed by a "Hosted Exchange Server provider" instead of building and deploying the system in-house.

Exchange Online is Exchange Server delivered as a cloud service hosted by Microsoft itself.

Exchange Server Online was first provided as a hosted service in dedicated customer environments in 2005 to select pilot customers.

Exchange Server 2010 was developed concurrently as a server product and for the Exchange Online service.