Mozilla Thunderbird is a free and open source cross-platform email client, news client, RSS and chat client developed by the Mozilla Foundation. It uses the XUL interface language and is installed by default in Ubuntu desktop systems.
MBOX is a format to store a large number of emails in a single file, both sent and received messages, and use the .mbox extension. With it, all the messages of a mailbox can be concatenated in a single document, which will allow you to access each of the emails.
This type of files stores the mails in a concatenated way, so that each one is stored after the other. It is a format that was originally created for Unix systems, but over time has been supported by the main mail applications, such as Mozilla Thunderbird and the Apple Mail program or clients such as GMAIL.
There could be multiple reasons behind the scenes that users are switching from MBOX to Office 365. But, many of you out there are not aware of the simple and easy methods that are available for it. Some of the methods are very simple to perform and require no technical skills. You can complete MBOX to Office 365 conversion without any loss of data.
One can easily convert MBOX files to Office 365 in two steps. Firstly, use Kernel for MBOX to PST Converter tool to convert MBOX files to PST files. Secondly, import PST files to Office 365 mailbox manually using native methods.
If we want it to be stored in Office 365:
Once the upload is complete, it will show the following status:
The next steps is to create the CSV file that associates the mail account with the PST file:
The first row or header row of the CSV file lists the parameters that will be used in the PST import service to import the PST files into the user mailboxes.
|Workload||Specifies the Office 365 service in which the data will be imported. Use Exchange to import PST files into users' mailboxes.||Exchange|
Specifies the location of the folder in the Azure storage location that has loaded the PST files a in step 2. If you do not include a name of the optional subfolder in the URL of SA in the / Dest parameter: in step 2, leave this parameter blank in the CSV file. If you include a name of the subfolder, specify in this parameter (see the second example). The value of this parameter is case-sensitive.
In both cases, they do not include "ingestiondata" in the value of the FilePath parameter.
Important: The case of the file path name must be the same as the case you use if you include a name of the optional subfolder in the SA URL in the / Dest parameter: in step 2. For example, If you use PSTFiles for the name of the subfolder in step 2, and then use pstfiles in the FilePath parameter CSV file, the import for the PST file will fail. Be sure to use the same case in both cases.
O well: PSTFiles
Specifies the name of the PST file that will be imported into the user's mailbox. The value of this parameter is case-sensitive.
Important: The case of the PST file name in the CSV file must be the same as the PST file that was loaded in the Azure storage location in step 2. For example, if you use annb.pst in the Name parameter in the CSV file, but the name of the actual PST file is AnnB.pst, the PST file will be imported. Make sure that the name of the PST in the CSV file uses the same case as the actual PST file.
Specifies the email address of the mailbox to be imported into the PST file. Note that you can not specify a public folder because the PST file import service does not support importing PST files into public folders.
To import a PST file into an inactive mailbox, you have to specify the mailbox GUID for this parameter. To obtain this GUID, run the following PowerShell command in Exchange Online: Get-Mailbox <identity of inactive mailbox> -InactiveMailboxOnly | FL Guid
Note: In some cases, you may have several mailboxes with the same email address, where one mailbox is an asset and another mailbox is in a soft (or inactive) deleted state. In these cases, you have to specify the GUID mailbox to identify the mailbox to import the PST file. To obtain this GUID of asset mailboxes, run the following PowerShell command: Get-Mailbox <identity of active mailbox> | FL Guid. To get the GUID of soft (or inactive) deleted mailboxes, run this command Get-Mailbox <identity of soft-deleted or inactive mailbox> -SoftDeletedMailbox | FL Guid.
email@example.com O well:
Specifies whether or not you want to import the PST file into the user's file mailbox. There are two options:
FALSE Imports the PST file into the user's primary mailbox.
FALSE Imports the PST file into the user's file mailbox. This assumes that the user's file mailbox is enabled. If you set this parameter to TRUE and the user's file mailbox is not enabled, the import will fail for that user. Note that if an import fails for a user (because your file is not enabled and this property is set to TRUE), the other users in the import job will not be affected. If you leave this parameter blank, the PST file is imported into the user's primary mailbox.
Note: To import a PST file into a cloud-based file mailbox for a user whose primary mailbox is local, just specify TRUE for this parameter and specify the email address for the user's local mailbox for the parameter Mailbox
Specifies the mailbox folder that the PST file is imported into.
If you leave this parameter blank, the PST file will be imported into a new folder with imported name located at the root level of the mailbox (the same level as the Inbox folder and the other folders in the mailbox by default).
This optional parameter specifies a numeric value for the code page when importing PST files in the ANSI file format. This parameter is used to import PST files from the Chinese, Japanese and Korean (CJK) organizations because these languages often use a double-byte character set (DBCS) for character encoding. If this parameter is not used to import PST files for languages that use DBCS for mailbox folder names, folder names are frequently blurred once they are imported.
For a list of supported values for this parameter, see Code page identifiers. Note: Previously indicated, this is an optional parameter and does not have to be included in the CSV file. Or, you can include it and leave the value blank for one or more rows.
932 (which is the identifier of the Japanese ANSI / OEM code page)
|SPFileContainer||To import PST files, leave this parameter blank.||Not applicable|
|SPManifestContainer||To import PST files, leave this parameter blank.||Not applicable|
|SPSiteUrl||To import PST files, leave this parameter blank.||Not applicable|
Once the analysis of the data of the .PST file is done, you can start the import:
There is a way by which migration from Thunderbird MBOX to Office 365 file can be performed quite efficaciously. This is by using a third-party migration tool like Kernel MBOX to Office 365 Migrator. The migration can be smoothly accomplished in just three steps. The steps involved are explained below:
The tool has been designed to overcome all the impediments faced during the Thunderbird MBOX to Office 365 migration. This tool is free from any technical glitches and instantly exports MBOX files to Office 365.