What exactly does the SMTP protocol in Outlook refer to?

The SMTP protocol in Outlook refers to the application layer service and can be applied to various network systems. Outlook is one of the components of Microsoft Office software suite. It expands the functions of Outlook Express that comes with Windows.

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Microsoft Office Outlook It is one of the components of Microsoft Office software suite. It expands the functions of Outlook express that comes with Windows. Outlook has many functions. You can use it to send and receive emails, manage contact information, keep diaries, arrange schedules, and assign tasks. The latest version is Outlook 2019.

Microsoft also renamed its Hotmail online email service to Outlook.com.

In March 2018, Cortana will be integrated into Outlook on Android and iOS and is being tested internally. Cortana integration will allow Outlook users on Android and iOS to take advantage of voice control to read messages aloud. Additionally, users will be able to ask questions like "My email content" as well as read emails sent by specific contacts in Outlook.

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