Microsoft Exchange (2019-present)
Microsoft Exchange can refer to: * Microsoft Exchange Server, an email server software product from Microsoft * Microsoft Exchange Client, the former companion client software for Exchange Server that was embedded into some versions of Microsoft Windows * Microsoft Exchange Hosted Services FrontBridge administrative dashboard, showing spam and malicious email filtering rates (99.54% of all messages for these domains)Microsoft Exchange Hosted Services, also known as FrontBridge, is an email filtering system owned by Microsoft. It w ...

Microsoft Exchange Server
Microsoft Exchange Server is a mail server and calendaring server developed by Microsoft. It runs exclusively on Windows Server operating systems. The first version was called Exchange Server 4.0, to position it as the successor to the related Microsoft Mail 3.5. Exchange initially used the X.400 directory service but switched to Active Directory later. Until version 5.0, it came bundled with an email client called Microsoft Exchange Client. This was discontinued in favor of Microsoft Outlook. Exchange Server primarily uses a proprietary protocol called MAPI to talk to email clients, but subsequently added support for POP3, IMAP, and EAS. The standard SMTP protocol is used to communicate to other Internet mail servers. Exchange Server is licensed both as on-premises software and software as a service (SaaS). In the on-premises form, customers purchase client access licenses (CALs); as SaaS, Microsoft charges a monthly service fee instead. History Microsoft had sold a nu ...
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