Outlook Cheat Sheet

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Microsoft Outlook is the widely-used email and productivity client within the Microsoft 365 ecosystem, combining email management, calendar scheduling, task tracking, and contact organization in a single application. In 2026, Outlook exists in two distinct versions: new Outlook (cloud-first, web-based architecture replacing the legacy client) and classic Outlook (traditional desktop app supported until at least 2029), with Microsoft delaying the forced enterprise migration to March 2027. The most critical insight for mastering Outlook: features like Copilot AI, Rules, Quick Steps, and Focused Inbox can dramatically reduce time spent on email, but their capabilities differ significantly between new and classic Outlook — knowing which version you're on determines which features are available to you.

What This Cheat Sheet Covers

This topic spans 19 focused tables and 155 indexed concepts. Below is a complete table-by-table outline of this topic, spanning foundational concepts through advanced details.

Table 1: Email Actions and NavigationTable 2: Inbox Organization FeaturesTable 3: Rules and AutomationTable 4: Email Flags and CategoriesTable 5: Search Operators and FiltersTable 6: Calendar and SchedulingTable 7: Contacts and Address BookTable 8: Tasks and To-Do IntegrationTable 9: Email Formatting and CompositionTable 10: Attachments and File SharingTable 11: Message Recall and Undo FeaturesTable 12: Security and EncryptionTable 13: Mobile App Features (iOS/Android)Table 14: Advanced Views and Display OptionsTable 15: Outlook Add-ins and IntegrationsTable 16: Data Management and RecoveryTable 17: Keyboard Shortcuts for Power UsersTable 18: Copilot AI FeaturesTable 19: New Outlook vs Classic Outlook (2026)

Action	Example	Description
New Email	`Ctrl + N`	Opens a blank email compose window — the most-used keyboard shortcut in Outlook.
Reply	`Ctrl + R`	Replies to the currently selected message only to the original sender.
Reply All	`Ctrl + Shift + R`	Replies to all recipients on the original message, including those in CC.
Forward	`Ctrl + F`	Forwards the selected email to new recipients while preserving original content.
Send	`Ctrl + Enter`	Immediately sends the current draft email — bypasses the Outbox in most configurations.
Schedule Send	Send dropdown > `Schedule send`	• Holds email in Drafts until chosen delivery time • available in new Outlook and OWA via Send button dropdown.
Undo Send	Settings > Undo send (up to 10s)	• Pauses outgoing email briefly after clicking Send, allowing cancellation • new Outlook: up to 10 seconds; Mac: up to 120 seconds.
Delete	`Delete`	• Moves selected email to Deleted Items folder • `Shift + Delete` permanently deletes without recovery option.
Archive	`Backspace`	Moves email to the Archive folder for long-term storage without deleting.

Table 1: Email Actions and Navigation

Action	Example	Description
New Email	`Ctrl + N`	Opens a blank email compose window — the most-used keyboard shortcut in Outlook.
Reply	`Ctrl + R`	Replies to the currently selected message only to the original sender.
Reply All	`Ctrl + Shift + R`	Replies to all recipients on the original message, including those in CC.
Forward	`Ctrl + F`	Forwards the selected email to new recipients while preserving original content.
Send	`Ctrl + Enter`	Immediately sends the current draft email — bypasses the Outbox in most configurations.
Schedule Send	Send dropdown > `Schedule send`	• Holds email in Drafts until chosen delivery time • available in new Outlook and OWA via Send button dropdown.
Undo Send	Settings > Undo send (up to 10s)	• Pauses outgoing email briefly after clicking Send, allowing cancellation • new Outlook: up to 10 seconds; Mac: up to 120 seconds.
Delete	`Delete`	• Moves selected email to Deleted Items folder • `Shift + Delete` permanently deletes without recovery option.
Archive	`Backspace`	Moves email to the Archive folder for long-term storage without deleting.