MailsDaddy Official Blog


How to Import MBOX file to Gmail Account with Attachments?

Are you looking for a solution to import MBOX file to Gmail account? If yes then you will be happy to know that you are at right post where you will be able to migrate mbox file to Gmail with all attachments.

Both MBOX based email clients and Gmail acquire a large number of users due to which conversions between them are common. But incomplete knowledge leads to loss of data and also hinders the work.

Why user choose Gmail to Import MBOX file?

The use of cloud has become very fast in use due to which many types of users have started taking advantage of various cloud services such as Office 365, Live Exchange, Google Workplace, AWS Workspace etc.

Also, migrating MBOX to Gmail protects mailboxes from unauthorized access if the system is used by everyone.

How many methods are used to import MBOX to Gmail?

Here the user can try two types of manual method to transfer mailboxes from most mbox-based email clients to Gmail account. But as we know manual way does not provide direct export option, so we have to compromise on some points.

To migrate the data in the first method, you can take the help of Gmail itself, but for this, your webmail or domain email account present in local system or cloud.

In the second method, you can take the help of Google Workspace Migration for Microsoft Outlook (GWMMO) tool, but here also you will need to convert data from MBOX to PST first.

First Method: Mozilla Thunderbird MBOX to Gmail

Suppose, we configure any webmail account to Mozilla Thunderbird, it will create MBOX file in local system.

  • At that time, Go to your Gmail account >> Gear icon > See All settings
  • Account and Imports >> Click on “import mail and contact”
  • Provides Email address >> Continue >> type Password
  • Continue again and wait until the syncing process is done.

As you can see this is the easiest way to transfer mailbox from MBOX to Gmail environment without any hard effort.

Second Method: Use GWMMO tool to import MBOX to Gmail

GWMMO tool is a freeware solution that helps you to convert mailbox from MBOX to Gmail. But here we need PST file because it is specially designed for Microsoft Outlook.

To convert MBOX to PST, first we use MailsDaddy MBOX to PST Converter tool. It allows user to export MBOX file from any MBOX-based email client, orphaned, and archive mailbox.

Note: The software has lots of advanced features to convert selected, filter and multiple account data to Outlook, Office 365, EML etc.

Step1: Export MBOX to PST using MBOX file Converter

  • Download MailsDaddy MBOX file converter tool, install it in any Windows OS then launch.
  • Click on Add file button to browse MBOX file and load into the software.
  • Press Export button to migrate all MBOX data file at once.
  • Choose PST file option and select single or separate PST file for all MBOX.
  • Browse the destination to save PST in local PC then hit on Next.

Wait for the confirmation window once it starts the migration process from MBOX to Outlook PST.

Step 2: Install and Run GWMMO tool to Import PST file to Gmail

Note: before using this method ensure that your Outlook data is in PST file format.

Go to Google Workspace Migration for Microsoft Outlook (Download Google Workspace Migration for Microsoft Outlook) page and download 32 or 64 MSI file as per system.

  • Double click on the file to install the solution then run it.
  • Type your Gmail mail id then press continue >> Allow access and type your account Password.
  • Click on drop-down and select PST file option
  • Browse the destination to add PST data file
  • Enable one option: “Migrate All data” or “Only New data” >> Next
  • Check/Uncheck the folder and filter (optional) then click on Migrate button.
  • Your migration batch will start in new window and it will take some time to convert all emails here, wait for it till then.

Once your MBOX file import to Gmail, go and login to Google account to enjoy your mailbox.


I have described two manual methods to import MBOX to Gmail account with attachments. Now it is up to you which method suit you better. You can also use the free demo version of MBOX file converter tool and convert 20 emails from MBOX to PST then Gmail. For more information related to the post contact our support team.

Read More: Convert MBOX to EML
Read More: Manual Thunderbird to Outlook PST

Scroll to Top