Outlook and Outlook express are both email clients developed by Microsoft.
Microsoft Outlook versus Outlook Express comparison chart
| ||Microsoft Outlook||Outlook Express|
|Intended user ||Business/corporate user
|Task List ||Yes
|Automatic back-up (archive) ||Yes
|Programmable using VBA ||Yes
|Message Rules ||Sophisticated rules for incoming as well as outgoing mail
||Incoming mail filters only
|Junk Mail feature ||Yes; sophisticated
|Network-oriented ||Message store and settings CAN be stored on a server
||Message store and settings cannot be stored on a server
|Included with IE and Windows ||No
|Protocols supported ||SMTP, POP3, IMAP4, HTTP, MAPI, LDAP, MHTML, NNTP, MIME, and S/MIME, vCalendar, vCard, iCalendar, and full support for HTML mail.
||SMTP, POP3, IMAP, and HTTP, LDAP, MHTML, HTML, S/MIME, NNTP
|Interoperability ||can be used in combination with MS office (like Word to perform mail-merge in e-mail or to automate outgoing mail messages)
||Does not interact with other programs except for creating a new mail message when a program requests it.
|File format ||.pst
|Available on ||Windows 7 and later
How to choose?
When choosing between Outlook Express and Outlook, users and organizations should base their usage decision on the following criteria:
Choose Outlook Express if:
- You require only Internet e-mail and newsgroup functionality (for versions of Windows later than Microsoft Windows 95, versions of Windows earlier than Microsoft Windows 95, Macintosh, and UNIX platforms).
- You use or plan to use Office 98 for Macintosh, and you want to take advantage of the integration of Outlook Express with this version of the Office suite.
Choose Outlook if:
- You require advanced Internet standards-based e-mail and discussion group functionality.
- You require integrated personal calendars, group scheduling, task, and contact management.
- You require integrated e-mail and calendaring, cross-platform clients for versions of Windows later than Microsoft Windows 95, versions of Windows earlier than Microsoft Windows 95, and Macintosh platforms.
- You use, or plan to use Office 97, Office 2000, Office XP or Exchange Server and want to take advantage of the integration of Outlook with this version of the Office suite, and the integration with Exchange Server.
- You require robust, integrated run-time and design-time collaboration capabilities.
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"Microsoft Outlook vs Outlook Express." Diffen.com. Diffen LLC, n.d. Web. 3 Dec 2016. < >