Importing e-mails from thunderbird to outlook 2007?

Unfortunately, you have to get the mail items into a format that Outlook understands (eml) You might take a look at this Mozillazine kb article, it lists various utilities for performing the conversion process.

In the past I had to do this for a customer and I used ImportExportTools which is listed on the aforementioned page, not great, not fast, but it worked.

I tried this using Thunderbird 3, Outlook Express 6 and Outlook 2003, but I hope it can help anyone else who's reading this QA.

In Thunderbird:

• CTRL+A to select all messages
• right-click & Save As
• save all the messages inside a folder (it saves as .eml files)

Open Outlook Express

• drag all the eml files that you save earlier into Outlook Express

Open Outlook

• click Import in the drop-down menu
• choose Import from another program or file
• choose Outlook Express