Outlook for Microsoft 365 for Mac and Outlook for Microsoft 365 for Windows differ in the following key features. The following tables summarize these differences in functionality.

Feature

Outlook for Microsoft 365 for Mac

Outlook for Microsoft 365 for Windows

Office Add-ins (Read)

Yes

Yes

Office Add-ins (Compose)

Yes

Yes

Conversation view

Yes

Showing messages from other folders for a given conversation is not supported.

Yes

Unified Inbox

Yes

No

Advanced search

Yes

Yes

Rich text editing

Yes

Yes

Imports .pst files

Yes

Yes

Exports into .pst

No

Yes

Propose New Time

Yes

Yes

Supports more than one account in one Inbox

Yes

Yes

Contact search

Yes

Yes

Create tables

Yes

Yes

Voting buttons

No

Yes

Message recall

No

Yes

Read and delivery receipts

Yes

Yes

Ignore and Clean Up actions

No

Yes

The Ignore button on the ribbon moves an entire conversation and any future replies to that conversation directly to the Deleted Items folder.

The Clean Up button moves older, redundant messages in the conversation to the Deleted Items folder but keeps the most recent message.

Attachment preview in mail messages (on computer)

Yes

Yes

Preview attachments in mail messages (in cloud)

No

No

Photos of contacts in mails, contact lists, and calendar

Yes

Yes

Expand distribution lists to show individual members

Yes

Yes

Online Archive

Yes

Your primary mailbox and archive must both be on-premises or both on Microsoft 365. A hybrid scenario, such as an on-premises mailbox with an Microsoft 365 archive is not supported.

Yes

Archive

Yes, for Exchange 2016 and later

Yes

Flagged items

Yes

Yes

Auto-archive for folders

No

Yes

Save as other (HTML/TXT)

No

Yes

Arrange By options

Yes

Yes

Modify column views

Yes, in single line view only

Yes

Multi-view support, Make this the Default View

Yes

Yes

Block auto-download of Internet messages

Yes

Yes

Multiple options when replying

Yes

Yes

Mark message as read

Yes

Yes

Show/hide message header

No

Yes

Set folders as favorites

Yes

Yes

Compose in HTML or plain text

Yes

Yes

Customize folder order

No

Yes

Delay send

Yes

Yes

Sync filters

No

Yes

Auto correct options

Yes

Yes

Always Bcc

Yes

Yes

Send message defaults

No

Yes

Copy items to folders

Yes

Yes

Thesaurus

Yes

Yes

Check email address

Yes

Yes

Set message sensitivity

Yes

Yes

Automatic replies

Yes

Yes

Set folder retention policy

No

Yes

Digital signatures

Yes

Yes

Message encryption

Yes

Yes

Flag for follow up

Yes

Yes

Advanced junk mail filtering

Yes

Does not sync mail with server

Yes

Online images

No

Yes

Add posts

No

Yes

Find related messages

No

Yes

Send mail as distribution list

No

Yes

Moderator approval or rejection of incoming messages to a distribution list

No

Yes

Create email templates

Yes

Yes

Feature

Outlook for Microsoft 365 for Mac

Outlook for Microsoft 365 for Windows

Share availability (free/busy) information, calendar, or contacts

Yes

Yes

Share availability (free/busy) information, calendar, or contacts with an external user

No

Yes

Overlay calendars

Yes

Yes

Side-by-side calendars

Yes

Up to three side-by-side calendars. Schedule view is not supported.

Yes

Calendar preview in meeting requests

Yes

Yes

Propose new time

Yes

Yes

Display week numbers

Yes

Yes

Create online Lync, Skype for Business, or Teams meeting

Yes

Yes

Advanced search

Yes

Yes

SharePoint calendars and lists

No

Yes

Weather in calendar

Yes

Yes

Feature

Outlook for Microsoft 365 for Mac

Outlook for Microsoft 365 for Windows

Offline Address Book (OAB)

Yes

You can search for people in the OAB but can’t browse it when offline.

Yes

Manage Exchange Server distribution lists

No

Yes

Advanced search

Yes

Yes

Lync presence information

Yes

Yes

Integrates with Skype for Business

Yes

Yes

Synchronizes contact groups with Exchange

No

Yes

Feature

Outlook for Microsoft 365 for Mac

Outlook for Microsoft 365 for Windows

Advanced search

Yes

Yes

Assign tasks to users

No

Yes

Categorize tasks

Yes

Yes

To-do items

No

Yes

Protocol

Outlook for Microsoft 365 for Mac

Outlook for Microsoft 365 for Windows

Exchange

Yes via EWS & REST

Yes via MAPI

IMAP

Yes

Yes

POP

Yes

Yes

SMTP

Yes

Yes

EAS

No

Yes

Exchange Server security settings

Yes

Yes

Connect to Exchange over HTTP

No

Yes

Auto-discover account info

Yes

Yes

S/MIME

Yes

Yes

Need more help?

Want more options?

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.