Mozilla Thunderbird is a free and multi-platform email client introduced by Thunderbird. The first version was released on December 7, 2004 and received more than 1,0,00,000 downloads in 10 days. It supports both IMAP and POP standards.
Apart from being an email client, Thunderbird is a news feed and chat client. Its default or vanilla version is not a personal information manager, but Mozilla Lightening extension adds this feature to it. Also, you can use add-ons to get additional features with Thunderbird.
Mozilla Thunderbird supports the Mailbox file format. There are two important file formats available in storage. One is with an extension which is .msf and one is without extension. File without extension is the main storage MBOX file and this is relevant to export data;
The profile folder contains all the information of Thunderbird in profiles and mailboxes in MBOX files. The default location of mailboxes can be found in profiles at:
For Windows 2000 & XP: C:\Documents and Settings\Windows user name\Application Data\Thunderbird\Profiles\Profile name
For Windows 7 & 8: C:\Users\Windows username\AppData\Roaming\Thunderbird\Profiles\Profile name
At times Thunderbird users tend to migrate their mailboxes to Outlook. This can happen in case the users experience some issues while working with Thunderbird application. Thunderbird, if used in Local folder mode (POP3) imposes 4 GB size limitation on the mailboxes. The users encounter corruption issues in mailboxes if this size is exceeded and hence decide to switch to Outlook application. But how to open Thunderbird Inbox file in Outlook is the prime quest faced by users as MBOX files are not supported in Outlook. Therefore, users export Thunderbird folder to PST so that they can access old emails in Outlook.
Since there is no manual procedure available to convert Thunderbird mail to Outlook, therefore an external application can be employed in order to fulfill the mentioned task. A third party tool like MBOX to Outlook Converter is best suited for this purpose. It is an efficient migration tool that converts MBOX files of email clients like Entourage, Thunderbird, and SeaMonkey to Outlook PST. With this tool you can easily move Thunderbird mail to Outlook 2013 as well as into other versions of Outlook.
Thunderbird to PST conversion process can be carried out in following steps:
STEP 1: Open and browse the MBOX files stored in your system. You can either select a file or a folder for conversion. After selecting the destination, click on Add option.
STEP 2: The tool scans the added file and folder and gives a preview of all the components. You can view the software panel in both vertical and horizontal views.
STEP 3: The tool gives you an option to export all or selected mails depending on the user's choice to export all or some mails from Thunderbird.
STEP 4: An export report is generated showing the success and fail item count.
Now Import Thunderbird emails to Outlook by using resulting converted PST file. If you are unaware how to open or import PST in MS Outlook, then have a look here.