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MBOX to Office 365- A Step Closer Towards Cloud


The increasing demand of Office 365 has shocked the entire computer industry, with Office 365 becoming the most preferred and used utility. Microsoft unveiled Office 365 not only with multiple software in a suite but also with services like Skype for Business Server, SharePoint, Active Directory integration, e-discovery Center etc. For consumers, the service allows the use of Microsoft Office apps on Windows and MacOS, provides storage space on Microsoft’s cloud storage service and grants 60 Skype minutes per month. For business users, Office 365 offers service plans providing emails and social networking services through hosted versions of Exchange Server, All across the globe people are changing their email client and migrating to Office 365. To upload MBOX to Office 365 is the problem for multiple users now. We are here to help you out with the query. We have covered the best way to export MBOX into Outlook 365 (a well known web-based application).

Instant Solution: You can use SysTools MBOX to Office 365 Migrator to easily import MBOX to Office 365. The tool can directly migrate MBOX files to Office 365 without any hindrance.

Need to Import MBOX to Office 365

MBOX files being the desktop client files are sometimes difficult to work with. These applications create trouble in opening MBOX files.All the applications that support MBOX file format are desktop-based email client applications. It restricts the accessibility of mailbox to the desktop only. Thus, users find it difficult to access emails anywhere and anytime.With the increasing emails and other data items, the MBOX file gets oversized it becomes difficult to work with such large sized MBOX file.

Hence the need for MBOX to Office 365 conversion becomes essential.

Manual Solutions

There is no direct method available to upload MBOX to Office 365. But you can convert MBOX files by a two-step procedure first by converting it to PST and then to Office 365.

Following are some manual steps that could be followed to convert MBOX to PST format:

Step 1: Convert MBOX Files to EML:

  • Launch Mozilla Thunderbird and navigate to the folder from where emails are being exported.
  • Select emails that you need to export to EML.
  • Right click on highlighted emails and select Save As an option to store all the files in EML format.
  • The emails are now in EML files.

Step 2: Transfer EML to Windows Live Mail:

  • Launch Windows Live Mail and select the folder that receives EML folder.
  • Open the folder that stores all the EML files.
  • Select all the EML files that you need to convert to PST.
  • Click Ok to convert the EML to PST.

Step 3: Export emails from Windows Live Mail to Outlook PST
The above method is only valid for Thunderbird email client.

In order to do the process fastly, an automated solution could be used. SysTools MBOX to Outlook Converter is the best way to cross the first hurdle.

PST to Office 365
There are two procedures to manually convert PST to Office 365.
1. Use network upload to PST files to Office 365.-Here are the step-by-step instructions required to use network upload to import PST files to Office 365 mailboxes.

  • Install Aure AzCopy.
  • Upload the .pst file to Office 365.
  • Create the PST importing mapping file.
  • Create a PST import job in Office 365.
  • Filter the data and start the PST import.

2.Use drive shipping to import PST files to Office 365.- Use drive shipping to bulk-import PST files to user mailboxes. Drive shipping means you can copy the PST files to a hard disk drive and then physically ship the drive to Microsoft. Here are the steps required to use drive shipping to import PST files to Office 365 mailboxes:

  • Download the PST Import tool and a secure storage key.
  • Copy the PST files to hard disk.
  • Create PST import mapping file.
  • Create PST import job.
  • Ship the hard drive and filter data to start PST import job.

This hurdle could be easily jumped by SysTools Office 365 Restore to import PST to Office 365 with ease.

Automated Solution

SysTools MBOX to Office 365 Migrator is a smartly programmed tool to upload all MBOX files to Office 365. The tool has lifetime license validity and 24*7 technical support on the purchase. It provides various features like importing MBOX files in bulk, Supports to Migrate MBOX emails like Apple Mail, Entourage, Eudora, Thunderbird to Office 365, allows to Import Data with or without Impersonation, supports to maintain folder hierarchy throughout the Procedure which makes this very unique and outstanding from other.

Simple Steps to Migrate MBOX to Office 365

  • Step 1: Run the migrator & add MBOX files
  • Step 2: Select “With or Without Impersonation” setting
  • Step 3: Input required User / Admin credentials
  • Step 4: Set filters and click “Export” to migrate MBOX to Office 365.


After observing various shortcomings of MBOX files and uploading issues, many users search for a reliable and efficient solution like Office 365. The best way is to use third party tools that guarantee to import data without any loss. The process is a bit lengthy and mind scratching but the outcomes are extremely commendable. MBOX to Office 365 conversion is so demanding that the used of software is much needed.