Converting Outlook Messages and Calendars

Last reviewed on September 5, 2014

Converting mailboxes — that is, the actual messages and other data — for use with a different application can be somewhat involved and is best performed with the help of a third party tool. The following migration tools support a large number of popular clients (except AOL):

For migrations to Microsoft Exchange, third-party migration services are available. See Migration Services Partners.

If your mailbox is fairly small, you can use an IMAP account to move email between different email clients, including between Windows and Mac clients. Add the IMAP account to your profile, copy your mail to it then create the IMAP account in the other email client and sync it down.

Administrators planning enterprise-scale migrations may be interested in a Migration White Paper from Connected Software.

To convert from:To:
AOL 4 through 9 and CompuServe 2000, 6.0, and 7.0.Microsoft Outlook 2000 through 2007, Outlook Express 6 and Windows Mail.
Use: ePreserver Moves email, address book and favorites to Outlook or Outlook Express. Requires the AOL email to be installed, does not work with webmail. Supports Windows Vista. If you need to import your e-mail and address book to other applications and they support importing from Outlook Express or Outlook, use ePreserver to convert from AOL, then use the Import function to import from Outlook or Outlook Express.
Eudora, Netscape and other Internet mail programsPersonal Folders
Microsoft Outlook has built-in support for importing Eudora mail. In Outlook, use File | Import and Export | Import Internet Mail and Addresses. Microsoft also has an article on how to import mail from Netscape 4.5 and later: OL2002 How to Import Messages and Addresses from Netscape Messenger 4.5 and Later
Transend Migrator, Aid4Mail, or Address Magic Personal PLUS
Eudora, Lotus Notes, Mozilla, Netscape 4/6/7, Thunderbird, IMAP, Outlook Express.Microsoft Exchange Server mailboxes or archive Personal Folders
Address Magic Personal PLUS or Address Magic Enterprise PLUS (100 users or more)
Outlook ExpressPersonal Folders or Microsoft Exchange Server mailbox
From Outlook Express, choose File | Export | Messages This method works with all versions of Outlook except Outlook 2010 64-bit. See Move from OE to Outlook on a new computer if you are moving from OE to Outlook to windows 7.
Windows Live MailPersonal Folders or Microsoft Exchange Server mailbox
From Live mail client, choose File | Export. Choose Microsoft Exchange even if you use POP3 or IMAP. Does not work with Outlook 2010 64-bit.
cc:Mail folders, bulletin boards or archivesPersonal Folders
Outlook 2000 Import/Export Wizard. See OL2000 You Cannot Import ccmail Archives that You Created After January 1, 2000.
Transend Migrator
Microsoft MailMicrosoft Exchange Server Mailbox
Exchange Migration Wizard supplied with Microsoft Exchange Server.
Lotus cc:Mail, IBM PROFS and Office Vision, Verimation MEMO, Digital All-in-1, Novell Groupwise, Collabra ShareMicrosoft Exchange Server Mailbox
Exchange Migration Wizard supplied with Microsoft Exchange Server. See:
XFOR: How to Migrate Messages from a GroupWise 5.x Mailbox to an Exchange Server Mailbox
XFOR GroupWise Migration Creates Duplicate Folders in Outlook
XCON Message Read or Unread Status Lost When Migrating from Lotus ccMail — hotfix available
cc:Mail archive filesMicrosoft Exchange Server Mailbox or Personal Folders
Transend Migrator,
Lotus Notes & DominoMicrosoft Exchange Server
Exchange Migration Wizard; see:

Also Transend Migrator, Address Magic Personal PLUS, Address Magic Enterprise PLUS and products from Verity

Meeting MakerMicrosoft Exchange Server
Sumatra Development ; also see Migrating Meeting Maker to Microsoft Exchange 2000
cc:Mail, Lotus Notes/Domino, Exchange 5.5, Exchange 2000, IMAP4, HP OpenMail, EMC²/TAO, SYSM, Novell GroupWisecc:Mail, Lotus Notes/Domino, Exchange 5.5, Exchange 2000, IMAP4, HP OpenMail, EMC²/TAO, SYSM, Novell GroupWise
CompuSven E-Mail Shuttle or Transend Migrator
Personal Folders or Microsoft Exchange Server MailboxMicrosoft Mail
Create a Microsoft Mail shared folder, then drag all the Exchange messages to it. When you connect via MS Mail, drag all the messages from the shared folder to your personal Microsoft Mail folders.
EudoraMicrosoft Internet Mail
EUD2IEM (see Cleaning up the Eudora .mbx file)
Vax mailMicrosoft Internet Mail
VMS2IEM
Exchange, Outlook, Notes, Netscape, Eudora, Pegasus, MHS, ExpressIT, GroupWise, cc:Mail (archives and folders), daVinci e-Mail, Notework, Compuserve, AOLExchange, Outlook, Notes, Netscape, Eudora, Pegasus, MHS, ExpressIT, GroupWise, HTML, generic
Transend Migrator
ExchangeGroupwise
GWMigrate or Transend Migrator, GroupWise® Migration Utility for Microsoft Exchange, or GroupWise Import Utility for Microsoft Outlook
OutlookTime & Chaos
Outlook Extract for Time and Chaos
OutlookText with full Internet headers
Personal Message Store Export Utility
Outlook messages, appointments, contacts, tasksText
ClipForm
Outlook CalendarvCalendar in bulk
vSync
Outlook Personal Storage files (*.pst), Outlook MSG files (*.msg), Outlook Express, EML message files (*.eml), MHT Web Archive files (*.mht), Mozilla (including Netscape and Thunderbird), Generic mailbox files (mbox, Berkeley, BSD, Unix), Eudora, PocoMail, Opera, Forte Agent, The Bat!, Pegasus, Calypso and Courier, PMMail message files (*.msg), FoxMail, maildir folders, Mailbag Assistant, E-mail Examiner and Aid4Mail ZIP archives.Outlook Personal Storage files (*.pst), EML message files (*.eml), MHT Web Archive files (*.mht), Mozilla (including Netscape and Thunderbird), Generic mailbox files (mbox, Berkeley, BSD, Unix, PocoMail, Aid4Mail ZIP archives.
Aid4Mail
Outlook, Agent, AOL, Becky, Eudora, Netscape, Outlook Express, OUI, Pegasus, Poco, TheBat, Virtual Access, generic RFC-822 mail, various CompuServe and newsgroup readersOutlook, Agent, AOL, Becky, Eudora, Netscape, Outlook Express, OUI, Pegasus, Poco, TheBat, Virtual Access, generic RFC-822 mail, various CompuServe and newsgroup readers
ForMorph
Personal Folders .pst filesGroupWise archives
GroupWise Import Utility for Microsoft Outlook
GroupWiseExchange
GroupWise Migrator for Exchange or Transend Migrator
Outlook, Entourage, Excel, Palm Desktop, other Windows and Macintosh PIMsOutlook, Entourage, Excel, Palm Desktop, other Windows and Macintosh PIMs
Export-Import for Entourage
QuickMailExchange, Notes, IMAP
QuickMail Migration
Microsoft Exchange, Outlook, Lotus Notes, GroupWise, Netscape, Eudora, Outlook Express, Lotus cc:Mail, IMAP4 Server, America Online, Pegasus, MHS, Notework, Compuserve, or DaVinciMicrosoft Exchange, Outlook, Lotus Notes, GroupWise, Netscape, Eudora, Outlook Express, Lotus cc:Mail, IMAP4 Server, America Online, Pegasus, MHS, Notework, Compuserve, or DaVinci
Transend Migrator
Outlook CalendariCalendar in bulk
vSync
Unix mbox folders, Netscape, Seamonkey EudoraOutlook Express, Outlook
Imapsize – need to do a “two step” to Outlook. First export into Outlook Express then Export from Outlook Express into Outlook.

Written by

Diane Poremsky
A Microsoft Outlook Most Valuable Professional (MVP) since 1999, Diane is the author of several books, including Outlook 2013 Absolute Beginners Book. She also created video training CDs and online training classes for Microsoft Outlook. You can find her helping people online in Outlook Forums as well as in the Microsoft Answers and TechNet forums.

Please post long or more complicated questions at Outlookforums.

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