Some W-Exchange features are only available when using the desktop version of Microsoft Outlook for Windows or macOS. The graph below illustrates some of the key differences between Outlook on the Web and Outlook for Windows and macOS.
For an extended feature list, which includes additional access options, please see the detailed feature comparison attached to this article.
| Category (App) |
Feature | Outlook on the Web (Web browser on Windows, Mac or Linux) |
Outlook for Windows (Office 365) | Outlook for Mac (Office 365) |
|---|---|---|---|---|
| General | Delegate/Share your entire account A Delegate may:
|
 No |
 Yes |
Yes |
| Share an email folder | Yes |
Yes |
Yes |
|
| Send email on behalf of another email address | Yes Note: Delegation must first be configured with Outlook on Windows or MAC |
Yes |
Yes |
|
| Direct email replies to another address (Change the "Reply to" field) | No |
Yes |
Yes |
|
| Configure and use more than one signature | No |
Yes |
Yes |
|
| Resend an email message | No |
Yes |
Yes |
|
| Delay/schedule email delivery | No |
Yes |
Yes |
|
| Retract an email message (if unread by the recipient) | No |
Yes |
No |
|
| Attach and/or share a file from OneDrive | Yes |
Yes |
Yes |
|
| Calendar | Auto-accept appointment invitations | No |
Yes |
No |
| Display multiple time zones simultaneously | No |
Yes |
No |
|
| Attach files to a calendar event | Yes |
Yes |
No |
|
| People (Contacts & address book) |
Share an individual address books/contact list | No |
Yes |
Yes |
| Access a shared address book/contact list | No |
Yes |
Yes |
|
| Print your address book | No |
Yes |
Yes |
|
| Tasks | Tasks appear on calendar | No |
Yes |
No |
| Share a task list | No |
Yes |
Yes |
|
| Assign tasks to people | No |
Yes |
No |